21004008

素因数分解:

$2^3\times 3^1\times {\mathrm{61}}^1\times {\mathrm{14347}}^1$

素因数の和:14417

約数の個数: 32

約数和(自身を含む): 53374560

約数和(自身を除く): 32370552

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 61, 122, 183, 244, 366, 488, 732, 1464, 14347, 28694, 43041, 57388, 86082, 114776, 172164, 344328, 875167, 1750334, 2625501, 3500668, 5251002, 7001336, 10502004, 21004008]

約数ペア:

[(1, 21004008), (2, 10502004), (3, 7001336), (4, 5251002), (6, 3500668), (8, 2625501), (12, 1750334), (24, 875167), (61, 344328), (122, 172164), (183, 114776), (244, 86082), (366, 57388), (488, 43041), (732, 28694), (1464, 14347)]