21769696

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1217}}^1$

素因数の和:1283

約数の個数: 48

約数和(自身を含む): 47268144

約数和(自身を除く): 25498448

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 86, 104, 172, 208, 344, 416, 559, 688, 1118, 1217, 1376, 2236, 2434, 4472, 4868, 8944, 9736, 15821, 17888, 19472, 31642, 38944, 52331, 63284, 104662, 126568, 209324, 253136, 418648, 506272, 680303, 837296, 1360606, 1674592, 2721212, 5442424, 10884848, 21769696]

約数ペア:

[(1, 21769696), (2, 10884848), (4, 5442424), (8, 2721212), (13, 1674592), (16, 1360606), (26, 837296), (32, 680303), (43, 506272), (52, 418648), (86, 253136), (104, 209324), (172, 126568), (208, 104662), (344, 63284), (416, 52331), (559, 38944), (688, 31642), (1118, 19472), (1217, 17888), (1376, 15821), (2236, 9736), (2434, 8944), (4472, 4868)]