21919860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2591}}^1$

素因数の和:2653

約数の個数: 72

約数和(自身を含む): 67931136

約数和(自身を除く): 46011276

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 90, 94, 141, 180, 188, 235, 282, 423, 470, 564, 705, 846, 940, 1410, 1692, 2115, 2591, 2820, 4230, 5182, 7773, 8460, 10364, 12955, 15546, 23319, 25910, 31092, 38865, 46638, 51820, 77730, 93276, 116595, 121777, 155460, 233190, 243554, 365331, 466380, 487108, 608885, 730662, 1095993, 1217770, 1461324, 1826655, 2191986, 2435540, 3653310, 4383972, 5479965, 7306620, 10959930, 21919860]

約数ペア:

[(1, 21919860), (2, 10959930), (3, 7306620), (4, 5479965), (5, 4383972), (6, 3653310), (9, 2435540), (10, 2191986), (12, 1826655), (15, 1461324), (18, 1217770), (20, 1095993), (30, 730662), (36, 608885), (45, 487108), (47, 466380), (60, 365331), (90, 243554), (94, 233190), (141, 155460), (180, 121777), (188, 116595), (235, 93276), (282, 77730), (423, 51820), (470, 46638), (564, 38865), (705, 31092), (846, 25910), (940, 23319), (1410, 15546), (1692, 12955), (2115, 10364), (2591, 8460), (2820, 7773), (4230, 5182)]