18736984

素因数分解:

$2^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:232

約数の個数: 64

約数和(自身を含む): 41990400

約数和(自身を除く): 23253416

約数列:

[1, 2, 4, 7, 8, 14, 28, 53, 56, 59, 106, 107, 118, 212, 214, 236, 371, 413, 424, 428, 472, 742, 749, 826, 856, 1484, 1498, 1652, 2968, 2996, 3127, 3304, 5671, 5992, 6254, 6313, 11342, 12508, 12626, 21889, 22684, 25016, 25252, 39697, 43778, 44191, 45368, 50504, 79394, 87556, 88382, 158788, 175112, 176764, 317576, 334589, 353528, 669178, 1338356, 2342123, 2676712, 4684246, 9368492, 18736984]

約数ペア:

[(1, 18736984), (2, 9368492), (4, 4684246), (7, 2676712), (8, 2342123), (14, 1338356), (28, 669178), (53, 353528), (56, 334589), (59, 317576), (106, 176764), (107, 175112), (118, 158788), (212, 88382), (214, 87556), (236, 79394), (371, 50504), (413, 45368), (424, 44191), (428, 43778), (472, 39697), (742, 25252), (749, 25016), (826, 22684), (856, 21889), (1484, 12626), (1498, 12508), (1652, 11342), (2968, 6313), (2996, 6254), (3127, 5992), (3304, 5671)]