20121949617

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{157519}}^1$

素因数の和:157626

約数の個数: 48

約数和(自身を含む): 34477977600

約数和(自身を除く): 14356027983

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 79, 147, 231, 237, 539, 553, 869, 1617, 1659, 2607, 3871, 6083, 11613, 18249, 42581, 127743, 157519, 472557, 1102633, 1732709, 3307899, 5198127, 7718431, 12128963, 12444001, 23155293, 36386889, 37332003, 84902741, 87108007, 136884011, 254708223, 261324021, 410652033, 609756049, 958188077, 1829268147, 2874564231, 6707316539, 20121949617]

約数ペア:

[(1, 20121949617), (3, 6707316539), (7, 2874564231), (11, 1829268147), (21, 958188077), (33, 609756049), (49, 410652033), (77, 261324021), (79, 254708223), (147, 136884011), (231, 87108007), (237, 84902741), (539, 37332003), (553, 36386889), (869, 23155293), (1617, 12444001), (1659, 12128963), (2607, 7718431), (3871, 5198127), (6083, 3307899), (11613, 1732709), (18249, 1102633), (42581, 472557), (127743, 157519)]