21951420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21521}}^1$

素因数の和:21550

約数の個数: 48

約数和(自身を含む): 65082528

約数和(自身を除く): 43131108

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 21521, 43042, 64563, 86084, 107605, 129126, 215210, 258252, 322815, 365857, 430420, 645630, 731714, 1097571, 1291260, 1463428, 1829285, 2195142, 3658570, 4390284, 5487855, 7317140, 10975710, 21951420]

約数ペア:

[(1, 21951420), (2, 10975710), (3, 7317140), (4, 5487855), (5, 4390284), (6, 3658570), (10, 2195142), (12, 1829285), (15, 1463428), (17, 1291260), (20, 1097571), (30, 731714), (34, 645630), (51, 430420), (60, 365857), (68, 322815), (85, 258252), (102, 215210), (170, 129126), (204, 107605), (255, 86084), (340, 64563), (510, 43042), (1020, 21521)]