21858212315

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1\times {\mathrm{523}}^1$

素因数の和:816

約数の個数: 64

約数和(自身を含む): 29083307904

約数和(自身を除く): 7225095589

約数列:

[1, 5, 17, 37, 85, 97, 137, 185, 485, 523, 629, 685, 1649, 2329, 2615, 3145, 3589, 5069, 8245, 8891, 11645, 13289, 17945, 19351, 25345, 44455, 50731, 61013, 66445, 71651, 86173, 96755, 225913, 253655, 305065, 328967, 358255, 430865, 491693, 862427, 1129565, 1218067, 1644835, 1877047, 2458465, 2651087, 4312135, 6090335, 6950147, 8358781, 9385235, 13255435, 31909799, 34750735, 41793905, 45068479, 118152499, 159548995, 225342395, 257155439, 590762495, 1285777195, 4371642463, 21858212315]

約数ペア:

[(1, 21858212315), (5, 4371642463), (17, 1285777195), (37, 590762495), (85, 257155439), (97, 225342395), (137, 159548995), (185, 118152499), (485, 45068479), (523, 41793905), (629, 34750735), (685, 31909799), (1649, 13255435), (2329, 9385235), (2615, 8358781), (3145, 6950147), (3589, 6090335), (5069, 4312135), (8245, 2651087), (8891, 2458465), (11645, 1877047), (13289, 1644835), (17945, 1218067), (19351, 1129565), (25345, 862427), (44455, 491693), (50731, 430865), (61013, 358255), (66445, 328967), (71651, 305065), (86173, 253655), (96755, 225913)]