21917880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{569}}^1$

素因数の和:693

約数の個数: 96

約数和(自身を含む): 72025200

約数和(自身を除く): 50107320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 107, 120, 180, 214, 321, 360, 428, 535, 569, 642, 856, 963, 1070, 1138, 1284, 1605, 1707, 1926, 2140, 2276, 2568, 2845, 3210, 3414, 3852, 4280, 4552, 4815, 5121, 5690, 6420, 6828, 7704, 8535, 9630, 10242, 11380, 12840, 13656, 17070, 19260, 20484, 22760, 25605, 34140, 38520, 40968, 51210, 60883, 68280, 102420, 121766, 182649, 204840, 243532, 304415, 365298, 487064, 547947, 608830, 730596, 913245, 1095894, 1217660, 1461192, 1826490, 2191788, 2435320, 2739735, 3652980, 4383576, 5479470, 7305960, 10958940, 21917880]

約数ペア:

[(1, 21917880), (2, 10958940), (3, 7305960), (4, 5479470), (5, 4383576), (6, 3652980), (8, 2739735), (9, 2435320), (10, 2191788), (12, 1826490), (15, 1461192), (18, 1217660), (20, 1095894), (24, 913245), (30, 730596), (36, 608830), (40, 547947), (45, 487064), (60, 365298), (72, 304415), (90, 243532), (107, 204840), (120, 182649), (180, 121766), (214, 102420), (321, 68280), (360, 60883), (428, 51210), (535, 40968), (569, 38520), (642, 34140), (856, 25605), (963, 22760), (1070, 20484), (1138, 19260), (1284, 17070), (1605, 13656), (1707, 12840), (1926, 11380), (2140, 10242), (2276, 9630), (2568, 8535), (2845, 7704), (3210, 6828), (3414, 6420), (3852, 5690), (4280, 5121), (4552, 4815)]