21050100

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{1231}}^1$

素因数の和:1270

約数の個数: 108

約数和(自身を含む): 69509440

約数和(自身を除く): 48459340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 25, 30, 36, 38, 45, 50, 57, 60, 75, 76, 90, 95, 100, 114, 150, 171, 180, 190, 225, 228, 285, 300, 342, 380, 450, 475, 570, 684, 855, 900, 950, 1140, 1231, 1425, 1710, 1900, 2462, 2850, 3420, 3693, 4275, 4924, 5700, 6155, 7386, 8550, 11079, 12310, 14772, 17100, 18465, 22158, 23389, 24620, 30775, 36930, 44316, 46778, 55395, 61550, 70167, 73860, 92325, 93556, 110790, 116945, 123100, 140334, 184650, 210501, 221580, 233890, 276975, 280668, 350835, 369300, 421002, 467780, 553950, 584725, 701670, 842004, 1052505, 1107900, 1169450, 1403340, 1754175, 2105010, 2338900, 3508350, 4210020, 5262525, 7016700, 10525050, 21050100]

約数ペア:

[(1, 21050100), (2, 10525050), (3, 7016700), (4, 5262525), (5, 4210020), (6, 3508350), (9, 2338900), (10, 2105010), (12, 1754175), (15, 1403340), (18, 1169450), (19, 1107900), (20, 1052505), (25, 842004), (30, 701670), (36, 584725), (38, 553950), (45, 467780), (50, 421002), (57, 369300), (60, 350835), (75, 280668), (76, 276975), (90, 233890), (95, 221580), (100, 210501), (114, 184650), (150, 140334), (171, 123100), (180, 116945), (190, 110790), (225, 93556), (228, 92325), (285, 73860), (300, 70167), (342, 61550), (380, 55395), (450, 46778), (475, 44316), (570, 36930), (684, 30775), (855, 24620), (900, 23389), (950, 22158), (1140, 18465), (1231, 17100), (1425, 14772), (1710, 12310), (1900, 11079), (2462, 8550), (2850, 7386), (3420, 6155), (3693, 5700), (4275, 4924)]