21117654

素因数分解:

$2^1\times 3^2\times {\mathrm{223}}^1\times {\mathrm{5261}}^1$

素因数の和:5492

約数の個数: 24

約数和(自身を含む): 45968832

約数和(自身を除く): 24851178

約数列:

[1, 2, 3, 6, 9, 18, 223, 446, 669, 1338, 2007, 4014, 5261, 10522, 15783, 31566, 47349, 94698, 1173203, 2346406, 3519609, 7039218, 10558827, 21117654]

約数ペア:

[(1, 21117654), (2, 10558827), (3, 7039218), (6, 3519609), (9, 2346406), (18, 1173203), (223, 94698), (446, 47349), (669, 31566), (1338, 15783), (2007, 10522), (4014, 5261)]