21867720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{3719}}^1$

素因数の和:3747

約数の個数: 96

約数和(自身を含む): 76334400

約数和(自身を除く): 54466680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 392, 420, 490, 588, 735, 840, 980, 1176, 1470, 1960, 2940, 3719, 5880, 7438, 11157, 14876, 18595, 22314, 26033, 29752, 37190, 44628, 52066, 55785, 74380, 78099, 89256, 104132, 111570, 130165, 148760, 156198, 182231, 208264, 223140, 260330, 312396, 364462, 390495, 446280, 520660, 546693, 624792, 728924, 780990, 911155, 1041320, 1093386, 1457848, 1561980, 1822310, 2186772, 2733465, 3123960, 3644620, 4373544, 5466930, 7289240, 10933860, 21867720]

約数ペア:

[(1, 21867720), (2, 10933860), (3, 7289240), (4, 5466930), (5, 4373544), (6, 3644620), (7, 3123960), (8, 2733465), (10, 2186772), (12, 1822310), (14, 1561980), (15, 1457848), (20, 1093386), (21, 1041320), (24, 911155), (28, 780990), (30, 728924), (35, 624792), (40, 546693), (42, 520660), (49, 446280), (56, 390495), (60, 364462), (70, 312396), (84, 260330), (98, 223140), (105, 208264), (120, 182231), (140, 156198), (147, 148760), (168, 130165), (196, 111570), (210, 104132), (245, 89256), (280, 78099), (294, 74380), (392, 55785), (420, 52066), (490, 44628), (588, 37190), (735, 29752), (840, 26033), (980, 22314), (1176, 18595), (1470, 14876), (1960, 11157), (2940, 7438), (3719, 5880)]