21831186

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{283}}^1$

素因数の和:367

約数の個数: 64

約数和(自身を含む): 50383872

約数和(自身を除く): 28552686

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 43, 46, 69, 78, 86, 129, 138, 258, 283, 299, 559, 566, 598, 849, 897, 989, 1118, 1677, 1698, 1794, 1978, 2967, 3354, 3679, 5934, 6509, 7358, 11037, 12169, 12857, 13018, 19527, 22074, 24338, 25714, 36507, 38571, 39054, 73014, 77142, 84617, 158197, 169234, 253851, 279887, 316394, 474591, 507702, 559774, 839661, 949182, 1679322, 3638531, 7277062, 10915593, 21831186]

約数ペア:

[(1, 21831186), (2, 10915593), (3, 7277062), (6, 3638531), (13, 1679322), (23, 949182), (26, 839661), (39, 559774), (43, 507702), (46, 474591), (69, 316394), (78, 279887), (86, 253851), (129, 169234), (138, 158197), (258, 84617), (283, 77142), (299, 73014), (559, 39054), (566, 38571), (598, 36507), (849, 25714), (897, 24338), (989, 22074), (1118, 19527), (1677, 13018), (1698, 12857), (1794, 12169), (1978, 11037), (2967, 7358), (3354, 6509), (3679, 5934)]