21035360

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4241}}^1$

素因数の和:4287

約数の個数: 48

約数和(自身を含む): 51311232

約数和(自身を除く): 30275872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4241, 4960, 8482, 16964, 21205, 33928, 42410, 67856, 84820, 131471, 135712, 169640, 262942, 339280, 525884, 657355, 678560, 1051768, 1314710, 2103536, 2629420, 4207072, 5258840, 10517680, 21035360]

約数ペア:

[(1, 21035360), (2, 10517680), (4, 5258840), (5, 4207072), (8, 2629420), (10, 2103536), (16, 1314710), (20, 1051768), (31, 678560), (32, 657355), (40, 525884), (62, 339280), (80, 262942), (124, 169640), (155, 135712), (160, 131471), (248, 84820), (310, 67856), (496, 42410), (620, 33928), (992, 21205), (1240, 16964), (2480, 8482), (4241, 4960)]