21930750

素因数分解:

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

素因数の和:70

約数の個数: 144

約数和(自身を含む): 64904112

約数和(自身を除く): 42973362

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 25, 27, 30, 38, 45, 50, 54, 57, 75, 81, 90, 95, 114, 125, 135, 150, 162, 171, 190, 225, 243, 250, 270, 285, 342, 361, 375, 405, 450, 475, 486, 513, 570, 675, 722, 750, 810, 855, 950, 1026, 1083, 1125, 1215, 1350, 1425, 1539, 1710, 1805, 2025, 2166, 2250, 2375, 2430, 2565, 2850, 3078, 3249, 3375, 3610, 4050, 4275, 4617, 4750, 5130, 5415, 6075, 6498, 6750, 7125, 7695, 8550, 9025, 9234, 9747, 10125, 10830, 12150, 12825, 14250, 15390, 16245, 18050, 19494, 20250, 21375, 23085, 25650, 27075, 29241, 30375, 32490, 38475, 42750, 45125, 46170, 48735, 54150, 58482, 60750, 64125, 76950, 81225, 87723, 90250, 97470, 115425, 128250, 135375, 146205, 162450, 175446, 192375, 230850, 243675, 270750, 292410, 384750, 406125, 438615, 487350, 577125, 731025, 812250, 877230, 1154250, 1218375, 1462050, 2193075, 2436750, 3655125, 4386150, 7310250, 10965375, 21930750]

約数ペア:

[(1, 21930750), (2, 10965375), (3, 7310250), (5, 4386150), (6, 3655125), (9, 2436750), (10, 2193075), (15, 1462050), (18, 1218375), (19, 1154250), (25, 877230), (27, 812250), (30, 731025), (38, 577125), (45, 487350), (50, 438615), (54, 406125), (57, 384750), (75, 292410), (81, 270750), (90, 243675), (95, 230850), (114, 192375), (125, 175446), (135, 162450), (150, 146205), (162, 135375), (171, 128250), (190, 115425), (225, 97470), (243, 90250), (250, 87723), (270, 81225), (285, 76950), (342, 64125), (361, 60750), (375, 58482), (405, 54150), (450, 48735), (475, 46170), (486, 45125), (513, 42750), (570, 38475), (675, 32490), (722, 30375), (750, 29241), (810, 27075), (855, 25650), (950, 23085), (1026, 21375), (1083, 20250), (1125, 19494), (1215, 18050), (1350, 16245), (1425, 15390), (1539, 14250), (1710, 12825), (1805, 12150), (2025, 10830), (2166, 10125), (2250, 9747), (2375, 9234), (2430, 9025), (2565, 8550), (2850, 7695), (3078, 7125), (3249, 6750), (3375, 6498), (3610, 6075), (4050, 5415), (4275, 5130), (4617, 4750)]