21658956

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:195

約数の個数: 96

約数和(自身を含む): 58490880

約数和(自身を除く): 36831924

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 31, 33, 44, 62, 66, 67, 79, 93, 124, 132, 134, 158, 186, 201, 237, 268, 316, 341, 372, 402, 474, 682, 737, 804, 869, 948, 1023, 1364, 1474, 1738, 2046, 2077, 2211, 2449, 2607, 2948, 3476, 4092, 4154, 4422, 4898, 5214, 5293, 6231, 7347, 8308, 8844, 9796, 10428, 10586, 12462, 14694, 15879, 21172, 22847, 24924, 26939, 29388, 31758, 45694, 53878, 58223, 63516, 68541, 80817, 91388, 107756, 116446, 137082, 161634, 164083, 174669, 232892, 274164, 323268, 328166, 349338, 492249, 656332, 698676, 984498, 1804913, 1968996, 3609826, 5414739, 7219652, 10829478, 21658956]

約数ペア:

[(1, 21658956), (2, 10829478), (3, 7219652), (4, 5414739), (6, 3609826), (11, 1968996), (12, 1804913), (22, 984498), (31, 698676), (33, 656332), (44, 492249), (62, 349338), (66, 328166), (67, 323268), (79, 274164), (93, 232892), (124, 174669), (132, 164083), (134, 161634), (158, 137082), (186, 116446), (201, 107756), (237, 91388), (268, 80817), (316, 68541), (341, 63516), (372, 58223), (402, 53878), (474, 45694), (682, 31758), (737, 29388), (804, 26939), (869, 24924), (948, 22847), (1023, 21172), (1364, 15879), (1474, 14694), (1738, 12462), (2046, 10586), (2077, 10428), (2211, 9796), (2449, 8844), (2607, 8308), (2948, 7347), (3476, 6231), (4092, 5293), (4154, 5214), (4422, 4898)]