21356992

素因数分解:

$2^6\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{311}}^1$

素因数の和:389

約数の個数: 56

約数和(自身を含む): 45171360

約数和(自身を除く): 23814368

約数列:

[1, 2, 4, 8, 16, 29, 32, 37, 58, 64, 74, 116, 148, 232, 296, 311, 464, 592, 622, 928, 1073, 1184, 1244, 1856, 2146, 2368, 2488, 4292, 4976, 8584, 9019, 9952, 11507, 17168, 18038, 19904, 23014, 34336, 36076, 46028, 68672, 72152, 92056, 144304, 184112, 288608, 333703, 368224, 577216, 667406, 736448, 1334812, 2669624, 5339248, 10678496, 21356992]

約数ペア:

[(1, 21356992), (2, 10678496), (4, 5339248), (8, 2669624), (16, 1334812), (29, 736448), (32, 667406), (37, 577216), (58, 368224), (64, 333703), (74, 288608), (116, 184112), (148, 144304), (232, 92056), (296, 72152), (311, 68672), (464, 46028), (592, 36076), (622, 34336), (928, 23014), (1073, 19904), (1184, 18038), (1244, 17168), (1856, 11507), (2146, 9952), (2368, 9019), (2488, 8584), (4292, 4976)]