20457980973

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{509}}^1\times {\mathrm{28087}}^1$

素因数の和:28658

約数の個数: 32

約数和(自身を含む): 30941740800

約数和(自身を除く): 10483759827

約数列:

[1, 3, 9, 27, 53, 159, 477, 509, 1431, 1527, 4581, 13743, 26977, 28087, 80931, 84261, 242793, 252783, 728379, 758349, 1488611, 4465833, 13397499, 14296283, 40192497, 42888849, 128666547, 385999641, 757702999, 2273108997, 6819326991, 20457980973]

約数ペア:

[(1, 20457980973), (3, 6819326991), (9, 2273108997), (27, 757702999), (53, 385999641), (159, 128666547), (477, 42888849), (509, 40192497), (1431, 14296283), (1527, 13397499), (4581, 4465833), (13743, 1488611), (26977, 758349), (28087, 728379), (80931, 252783), (84261, 242793)]