21545510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{1321}}^1$

素因数の和:1568

約数の個数: 32

約数和(自身を含む): 44546112

約数和(自身を除く): 23000602

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 233, 466, 1165, 1321, 1631, 2330, 2642, 3262, 6605, 8155, 9247, 13210, 16310, 18494, 46235, 92470, 307793, 615586, 1538965, 2154551, 3077930, 4309102, 10772755, 21545510]

約数ペア:

[(1, 21545510), (2, 10772755), (5, 4309102), (7, 3077930), (10, 2154551), (14, 1538965), (35, 615586), (70, 307793), (233, 92470), (466, 46235), (1165, 18494), (1321, 16310), (1631, 13210), (2330, 9247), (2642, 8155), (3262, 6605)]