21868528

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{7309}}^1$

素因数の和:7345

約数の個数: 40

約数和(自身を含む): 48947760

約数和(自身を除く): 27079232

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 136, 176, 187, 272, 374, 748, 1496, 2992, 7309, 14618, 29236, 58472, 80399, 116944, 124253, 160798, 248506, 321596, 497012, 643192, 994024, 1286384, 1366783, 1988048, 2733566, 5467132, 10934264, 21868528]

約数ペア:

[(1, 21868528), (2, 10934264), (4, 5467132), (8, 2733566), (11, 1988048), (16, 1366783), (17, 1286384), (22, 994024), (34, 643192), (44, 497012), (68, 321596), (88, 248506), (136, 160798), (176, 124253), (187, 116944), (272, 80399), (374, 58472), (748, 29236), (1496, 14618), (2992, 7309)]