21497642730

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{404167}}^1$

素因数の和:404380

約数の個数: 64

約数和(自身を含む): 57618190080

約数和(自身を除く): 36120547350

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 197, 270, 394, 591, 985, 1182, 1773, 1970, 2955, 3546, 5319, 5910, 8865, 10638, 17730, 26595, 53190, 404167, 808334, 1212501, 2020835, 2425002, 3637503, 4041670, 6062505, 7275006, 10912509, 12125010, 18187515, 21825018, 36375030, 54562545, 79620899, 109125090, 159241798, 238862697, 398104495, 477725394, 716588091, 796208990, 1194313485, 1433176182, 2149764273, 2388626970, 3582940455, 4299528546, 7165880910, 10748821365, 21497642730]

約数ペア:

[(1, 21497642730), (2, 10748821365), (3, 7165880910), (5, 4299528546), (6, 3582940455), (9, 2388626970), (10, 2149764273), (15, 1433176182), (18, 1194313485), (27, 796208990), (30, 716588091), (45, 477725394), (54, 398104495), (90, 238862697), (135, 159241798), (197, 109125090), (270, 79620899), (394, 54562545), (591, 36375030), (985, 21825018), (1182, 18187515), (1773, 12125010), (1970, 10912509), (2955, 7275006), (3546, 6062505), (5319, 4041670), (5910, 3637503), (8865, 2425002), (10638, 2020835), (17730, 1212501), (26595, 808334), (53190, 404167)]