21250792

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{967}}^1$

素因数の和:1081

約数の個数: 32

約数和(自身を含む): 41469120

約数和(自身を除く): 20218328

約数列:

[1, 2, 4, 8, 41, 67, 82, 134, 164, 268, 328, 536, 967, 1934, 2747, 3868, 5494, 7736, 10988, 21976, 39647, 64789, 79294, 129578, 158588, 259156, 317176, 518312, 2656349, 5312698, 10625396, 21250792]

約数ペア:

[(1, 21250792), (2, 10625396), (4, 5312698), (8, 2656349), (41, 518312), (67, 317176), (82, 259156), (134, 158588), (164, 129578), (268, 79294), (328, 64789), (536, 39647), (967, 21976), (1934, 10988), (2747, 7736), (3868, 5494)]