21523020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21101}}^1$

素因数の和:21130

約数の個数: 48

約数和(自身を含む): 63812448

約数和(自身を除く): 42289428

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, 21101, 42202, 63303, 84404, 105505, 126606, 211010, 253212, 316515, 358717, 422020, 633030, 717434, 1076151, 1266060, 1434868, 1793585, 2152302, 3587170, 4304604, 5380755, 7174340, 10761510, 21523020]

約数ペア:

[(1, 21523020), (2, 10761510), (3, 7174340), (4, 5380755), (5, 4304604), (6, 3587170), (10, 2152302), (12, 1793585), (15, 1434868), (17, 1266060), (20, 1076151), (30, 717434), (34, 633030), (51, 422020), (60, 358717), (68, 316515), (85, 253212), (102, 211010), (170, 126606), (204, 105505), (255, 84404), (340, 63303), (510, 42202), (1020, 21101)]