18420572

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{997}}^1$

素因数の和:1181

約数の個数: 24

約数和(自身を含む): 33532800

約数和(自身を除く): 15112228

約数列:

[1, 2, 4, 31, 62, 124, 149, 298, 596, 997, 1994, 3988, 4619, 9238, 18476, 30907, 61814, 123628, 148553, 297106, 594212, 4605143, 9210286, 18420572]

約数ペア:

[(1, 18420572), (2, 9210286), (4, 4605143), (31, 594212), (62, 297106), (124, 148553), (149, 123628), (298, 61814), (596, 30907), (997, 18476), (1994, 9238), (3988, 4619)]