19977696

素因数分解:

$2^5\times 3^2\times {\mathrm{71}}^1\times {\mathrm{977}}^1$

素因数の和:1064

約数の個数: 72

約数和(自身を含む): 57670704

約数和(自身を除く): 37693008

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 71, 72, 96, 142, 144, 213, 284, 288, 426, 568, 639, 852, 977, 1136, 1278, 1704, 1954, 2272, 2556, 2931, 3408, 3908, 5112, 5862, 6816, 7816, 8793, 10224, 11724, 15632, 17586, 20448, 23448, 31264, 35172, 46896, 69367, 70344, 93792, 138734, 140688, 208101, 277468, 281376, 416202, 554936, 624303, 832404, 1109872, 1248606, 1664808, 2219744, 2497212, 3329616, 4994424, 6659232, 9988848, 19977696]

約数ペア:

[(1, 19977696), (2, 9988848), (3, 6659232), (4, 4994424), (6, 3329616), (8, 2497212), (9, 2219744), (12, 1664808), (16, 1248606), (18, 1109872), (24, 832404), (32, 624303), (36, 554936), (48, 416202), (71, 281376), (72, 277468), (96, 208101), (142, 140688), (144, 138734), (213, 93792), (284, 70344), (288, 69367), (426, 46896), (568, 35172), (639, 31264), (852, 23448), (977, 20448), (1136, 17586), (1278, 15632), (1704, 11724), (1954, 10224), (2272, 8793), (2556, 7816), (2931, 6816), (3408, 5862), (3908, 5112)]