21131397960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{151937}}^1$

素因数の和:152031

約数の個数: 128

約数和(自身を含む): 67825123200

約数和(自身を除く): 46693725240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 61, 76, 95, 114, 120, 122, 152, 183, 190, 228, 244, 285, 305, 366, 380, 456, 488, 570, 610, 732, 760, 915, 1140, 1159, 1220, 1464, 1830, 2280, 2318, 2440, 3477, 3660, 4636, 5795, 6954, 7320, 9272, 11590, 13908, 17385, 23180, 27816, 34770, 46360, 69540, 139080, 151937, 303874, 455811, 607748, 759685, 911622, 1215496, 1519370, 1823244, 2279055, 2886803, 3038740, 3646488, 4558110, 5773606, 6077480, 8660409, 9116220, 9268157, 11547212, 14434015, 17320818, 18232440, 18536314, 23094424, 27804471, 28868030, 34641636, 37072628, 43302045, 46340785, 55608942, 57736060, 69283272, 74145256, 86604090, 92681570, 111217884, 115472120, 139022355, 173208180, 176094983, 185363140, 222435768, 278044710, 346416360, 352189966, 370726280, 528284949, 556089420, 704379932, 880474915, 1056569898, 1112178840, 1408759864, 1760949830, 2113139796, 2641424745, 3521899660, 4226279592, 5282849490, 7043799320, 10565698980, 21131397960]

約数ペア:

[(1, 21131397960), (2, 10565698980), (3, 7043799320), (4, 5282849490), (5, 4226279592), (6, 3521899660), (8, 2641424745), (10, 2113139796), (12, 1760949830), (15, 1408759864), (19, 1112178840), (20, 1056569898), (24, 880474915), (30, 704379932), (38, 556089420), (40, 528284949), (57, 370726280), (60, 352189966), (61, 346416360), (76, 278044710), (95, 222435768), (114, 185363140), (120, 176094983), (122, 173208180), (152, 139022355), (183, 115472120), (190, 111217884), (228, 92681570), (244, 86604090), (285, 74145256), (305, 69283272), (366, 57736060), (380, 55608942), (456, 46340785), (488, 43302045), (570, 37072628), (610, 34641636), (732, 28868030), (760, 27804471), (915, 23094424), (1140, 18536314), (1159, 18232440), (1220, 17320818), (1464, 14434015), (1830, 11547212), (2280, 9268157), (2318, 9116220), (2440, 8660409), (3477, 6077480), (3660, 5773606), (4636, 4558110), (5795, 3646488), (6954, 3038740), (7320, 2886803), (9272, 2279055), (11590, 1823244), (13908, 1519370), (17385, 1215496), (23180, 911622), (27816, 759685), (34770, 607748), (46360, 455811), (69540, 303874), (139080, 151937)]