21829640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1471}}^1$

素因数の和:1542

約数の個数: 64

約数和(自身を含む): 57231360

約数和(自身を除く): 35401720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 53, 56, 70, 106, 140, 212, 265, 280, 371, 424, 530, 742, 1060, 1471, 1484, 1855, 2120, 2942, 2968, 3710, 5884, 7355, 7420, 10297, 11768, 14710, 14840, 20594, 29420, 41188, 51485, 58840, 77963, 82376, 102970, 155926, 205940, 311852, 389815, 411880, 545741, 623704, 779630, 1091482, 1559260, 2182964, 2728705, 3118520, 4365928, 5457410, 10914820, 21829640]

約数ペア:

[(1, 21829640), (2, 10914820), (4, 5457410), (5, 4365928), (7, 3118520), (8, 2728705), (10, 2182964), (14, 1559260), (20, 1091482), (28, 779630), (35, 623704), (40, 545741), (53, 411880), (56, 389815), (70, 311852), (106, 205940), (140, 155926), (212, 102970), (265, 82376), (280, 77963), (371, 58840), (424, 51485), (530, 41188), (742, 29420), (1060, 20594), (1471, 14840), (1484, 14710), (1855, 11768), (2120, 10297), (2942, 7420), (2968, 7355), (3710, 5884)]