21421380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1601}}^1$

素因数の和:1836

約数の個数: 48

約数和(自身を含む): 60286464

約数和(自身を除く): 38865084

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 223, 446, 669, 892, 1115, 1338, 1601, 2230, 2676, 3202, 3345, 4460, 4803, 6404, 6690, 8005, 9606, 13380, 16010, 19212, 24015, 32020, 48030, 96060, 357023, 714046, 1071069, 1428092, 1785115, 2142138, 3570230, 4284276, 5355345, 7140460, 10710690, 21421380]

約数ペア:

[(1, 21421380), (2, 10710690), (3, 7140460), (4, 5355345), (5, 4284276), (6, 3570230), (10, 2142138), (12, 1785115), (15, 1428092), (20, 1071069), (30, 714046), (60, 357023), (223, 96060), (446, 48030), (669, 32020), (892, 24015), (1115, 19212), (1338, 16010), (1601, 13380), (2230, 9606), (2676, 8005), (3202, 6690), (3345, 6404), (4460, 4803)]