215440979

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:291

約数の個数: 32

約数和(自身を含む): 248586240

約数和(自身を除く): 33145261

約数列:

[1, 13, 31, 67, 79, 101, 403, 871, 1027, 1313, 2077, 2449, 3131, 5293, 6767, 7979, 27001, 31837, 40703, 68809, 87971, 103727, 164083, 209777, 247349, 534593, 2133079, 2727101, 3215537, 6949709, 16572383, 215440979]

約数ペア:

[(1, 215440979), (13, 16572383), (31, 6949709), (67, 3215537), (79, 2727101), (101, 2133079), (403, 534593), (871, 247349), (1027, 209777), (1313, 164083), (2077, 103727), (2449, 87971), (3131, 68809), (5293, 40703), (6767, 31837), (7979, 27001)]