21740280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{10657}}^1$

素因数の和:10688

約数の個数: 64

約数和(自身を含む): 69063840

約数和(自身を除く): 47323560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 10657, 21314, 31971, 42628, 53285, 63942, 85256, 106570, 127884, 159855, 181169, 213140, 255768, 319710, 362338, 426280, 543507, 639420, 724676, 905845, 1087014, 1278840, 1449352, 1811690, 2174028, 2717535, 3623380, 4348056, 5435070, 7246760, 10870140, 21740280]

約数ペア:

[(1, 21740280), (2, 10870140), (3, 7246760), (4, 5435070), (5, 4348056), (6, 3623380), (8, 2717535), (10, 2174028), (12, 1811690), (15, 1449352), (17, 1278840), (20, 1087014), (24, 905845), (30, 724676), (34, 639420), (40, 543507), (51, 426280), (60, 362338), (68, 319710), (85, 255768), (102, 213140), (120, 181169), (136, 159855), (170, 127884), (204, 106570), (255, 85256), (340, 63942), (408, 53285), (510, 42628), (680, 31971), (1020, 21314), (2040, 10657)]