21954296

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{569}}^1$

素因数の和:648

約数の個数: 64

約数和(自身を含む): 51710400

約数和(自身を除く): 29756104

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 53, 56, 91, 104, 106, 182, 212, 364, 371, 424, 569, 689, 728, 742, 1138, 1378, 1484, 2276, 2756, 2968, 3983, 4552, 4823, 5512, 7397, 7966, 9646, 14794, 15932, 19292, 29588, 30157, 31864, 38584, 51779, 59176, 60314, 103558, 120628, 207116, 211099, 241256, 392041, 414232, 422198, 784082, 844396, 1568164, 1688792, 2744287, 3136328, 5488574, 10977148, 21954296]

約数ペア:

[(1, 21954296), (2, 10977148), (4, 5488574), (7, 3136328), (8, 2744287), (13, 1688792), (14, 1568164), (26, 844396), (28, 784082), (52, 422198), (53, 414232), (56, 392041), (91, 241256), (104, 211099), (106, 207116), (182, 120628), (212, 103558), (364, 60314), (371, 59176), (424, 51779), (569, 38584), (689, 31864), (728, 30157), (742, 29588), (1138, 19292), (1378, 15932), (1484, 14794), (2276, 9646), (2756, 7966), (2968, 7397), (3983, 5512), (4552, 4823)]