87811521

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{2179}}^1$

素因数の和:2309

約数の個数: 32

約数和(自身を含む): 142310400

約数和(自身を除く): 54498879

約数列:

[1, 3, 7, 19, 21, 57, 101, 133, 303, 399, 707, 1919, 2121, 2179, 5757, 6537, 13433, 15253, 40299, 41401, 45759, 124203, 220079, 289807, 660237, 869421, 1540553, 4181501, 4621659, 12544503, 29270507, 87811521]

約数ペア:

[(1, 87811521), (3, 29270507), (7, 12544503), (19, 4621659), (21, 4181501), (57, 1540553), (101, 869421), (133, 660237), (303, 289807), (399, 220079), (707, 124203), (1919, 45759), (2121, 41401), (2179, 40299), (5757, 15253), (6537, 13433)]