21668156916

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{2719}}^1\times {\mathrm{13553}}^1$

素因数の和:16293

約数の個数: 72

約数和(自身を含む): 58839540480

約数和(自身を除く): 37171383564

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 588, 2719, 5438, 8157, 10876, 13553, 16314, 19033, 27106, 32628, 38066, 40659, 54212, 57099, 76132, 81318, 94871, 114198, 133231, 162636, 189742, 228396, 266462, 284613, 379484, 399693, 532924, 569226, 664097, 799386, 1138452, 1328194, 1598772, 1992291, 2656388, 3984582, 7969164, 36850607, 73701214, 110551821, 147402428, 221103642, 257954249, 442207284, 515908498, 773862747, 1031816996, 1547725494, 1805679743, 3095450988, 3611359486, 5417039229, 7222718972, 10834078458, 21668156916]

約数ペア:

[(1, 21668156916), (2, 10834078458), (3, 7222718972), (4, 5417039229), (6, 3611359486), (7, 3095450988), (12, 1805679743), (14, 1547725494), (21, 1031816996), (28, 773862747), (42, 515908498), (49, 442207284), (84, 257954249), (98, 221103642), (147, 147402428), (196, 110551821), (294, 73701214), (588, 36850607), (2719, 7969164), (5438, 3984582), (8157, 2656388), (10876, 1992291), (13553, 1598772), (16314, 1328194), (19033, 1138452), (27106, 799386), (32628, 664097), (38066, 569226), (40659, 532924), (54212, 399693), (57099, 379484), (76132, 284613), (81318, 266462), (94871, 228396), (114198, 189742), (133231, 162636)]