20741344

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{683}}^1$

素因数の和:779

約数の個数: 48

約数和(自身を含む): 44643312

約数和(自身を除く): 23901968

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 73, 104, 146, 208, 292, 416, 584, 683, 949, 1168, 1366, 1898, 2336, 2732, 3796, 5464, 7592, 8879, 10928, 15184, 17758, 21856, 30368, 35516, 49859, 71032, 99718, 142064, 199436, 284128, 398872, 648167, 797744, 1296334, 1595488, 2592668, 5185336, 10370672, 20741344]

約数ペア:

[(1, 20741344), (2, 10370672), (4, 5185336), (8, 2592668), (13, 1595488), (16, 1296334), (26, 797744), (32, 648167), (52, 398872), (73, 284128), (104, 199436), (146, 142064), (208, 99718), (292, 71032), (416, 49859), (584, 35516), (683, 30368), (949, 21856), (1168, 17758), (1366, 15184), (1898, 10928), (2336, 8879), (2732, 7592), (3796, 5464)]