21036848

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:202

約数の個数: 80

約数和(自身を含む): 49330176

約数和(自身を除く): 28293328

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 73, 83, 112, 124, 146, 166, 217, 248, 292, 332, 434, 496, 511, 581, 584, 664, 868, 1022, 1162, 1168, 1328, 1736, 2044, 2263, 2324, 2573, 3472, 4088, 4526, 4648, 5146, 6059, 8176, 9052, 9296, 10292, 12118, 15841, 18011, 18104, 20584, 24236, 31682, 36022, 36208, 41168, 42413, 48472, 63364, 72044, 84826, 96944, 126728, 144088, 169652, 187829, 253456, 288176, 339304, 375658, 678608, 751316, 1314803, 1502632, 2629606, 3005264, 5259212, 10518424, 21036848]

約数ペア:

[(1, 21036848), (2, 10518424), (4, 5259212), (7, 3005264), (8, 2629606), (14, 1502632), (16, 1314803), (28, 751316), (31, 678608), (56, 375658), (62, 339304), (73, 288176), (83, 253456), (112, 187829), (124, 169652), (146, 144088), (166, 126728), (217, 96944), (248, 84826), (292, 72044), (332, 63364), (434, 48472), (496, 42413), (511, 41168), (581, 36208), (584, 36022), (664, 31682), (868, 24236), (1022, 20584), (1162, 18104), (1168, 18011), (1328, 15841), (1736, 12118), (2044, 10292), (2263, 9296), (2324, 9052), (2573, 8176), (3472, 6059), (4088, 5146), (4526, 4648)]