19939130

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{2213}}^1$

素因数の和:2290

約数の個数: 32

約数和(自身を含む): 38736144

約数和(自身を除く): 18797014

約数列:

[1, 2, 5, 10, 17, 34, 53, 85, 106, 170, 265, 530, 901, 1802, 2213, 4426, 4505, 9010, 11065, 22130, 37621, 75242, 117289, 188105, 234578, 376210, 586445, 1172890, 1993913, 3987826, 9969565, 19939130]

約数ペア:

[(1, 19939130), (2, 9969565), (5, 3987826), (10, 1993913), (17, 1172890), (34, 586445), (53, 376210), (85, 234578), (106, 188105), (170, 117289), (265, 75242), (530, 37621), (901, 22130), (1802, 11065), (2213, 9010), (4426, 4505)]