21928980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21499}}^1$

素因数の和:21528

約数の個数: 48

約数和(自身を含む): 65016000

約数和(自身を除く): 43087020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 21499, 42998, 64497, 85996, 107495, 128994, 214990, 257988, 322485, 365483, 429980, 644970, 730966, 1096449, 1289940, 1461932, 1827415, 2192898, 3654830, 4385796, 5482245, 7309660, 10964490, 21928980]

約数ペア:

[(1, 21928980), (2, 10964490), (3, 7309660), (4, 5482245), (5, 4385796), (6, 3654830), (10, 2192898), (12, 1827415), (15, 1461932), (17, 1289940), (20, 1096449), (30, 730966), (34, 644970), (51, 429980), (60, 365483), (68, 322485), (85, 257988), (102, 214990), (170, 128994), (204, 107495), (255, 85996), (340, 64497), (510, 42998), (1020, 21499)]