21006060

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4931}}^1$

素因数の和:5014

約数の個数: 48

約数和(自身を含む): 59657472

約数和(自身を除く): 38651412

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 4931, 9862, 14793, 19724, 24655, 29586, 49310, 59172, 73965, 98620, 147930, 295860, 350101, 700202, 1050303, 1400404, 1750505, 2100606, 3501010, 4201212, 5251515, 7002020, 10503030, 21006060]

約数ペア:

[(1, 21006060), (2, 10503030), (3, 7002020), (4, 5251515), (5, 4201212), (6, 3501010), (10, 2100606), (12, 1750505), (15, 1400404), (20, 1050303), (30, 700202), (60, 350101), (71, 295860), (142, 147930), (213, 98620), (284, 73965), (355, 59172), (426, 49310), (710, 29586), (852, 24655), (1065, 19724), (1420, 14793), (2130, 9862), (4260, 4931)]