21378936456

素因数分解:

$2^3\times 3^2\times {\mathrm{401}}^1\times {\mathrm{740473}}^1$

素因数の和:740886

約数の個数: 48

約数和(自身を含む): 58045756860

約数和(自身を除く): 36666820404

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 401, 802, 1203, 1604, 2406, 3208, 3609, 4812, 7218, 9624, 14436, 28872, 740473, 1480946, 2221419, 2961892, 4442838, 5923784, 6664257, 8885676, 13328514, 17771352, 26657028, 53314056, 296929673, 593859346, 890789019, 1187718692, 1781578038, 2375437384, 2672367057, 3563156076, 5344734114, 7126312152, 10689468228, 21378936456]

約数ペア:

[(1, 21378936456), (2, 10689468228), (3, 7126312152), (4, 5344734114), (6, 3563156076), (8, 2672367057), (9, 2375437384), (12, 1781578038), (18, 1187718692), (24, 890789019), (36, 593859346), (72, 296929673), (401, 53314056), (802, 26657028), (1203, 17771352), (1604, 13328514), (2406, 8885676), (3208, 6664257), (3609, 5923784), (4812, 4442838), (7218, 2961892), (9624, 2221419), (14436, 1480946), (28872, 740473)]