21399488

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{269}}^1$

素因数の和:405

約数の個数: 56

約数和(自身を含む): 46908720

約数和(自身を除く): 25509232

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 113, 176, 226, 269, 352, 452, 538, 704, 904, 1076, 1243, 1808, 2152, 2486, 2959, 3616, 4304, 4972, 5918, 7232, 8608, 9944, 11836, 17216, 19888, 23672, 30397, 39776, 47344, 60794, 79552, 94688, 121588, 189376, 243176, 334367, 486352, 668734, 972704, 1337468, 1945408, 2674936, 5349872, 10699744, 21399488]

約数ペア:

[(1, 21399488), (2, 10699744), (4, 5349872), (8, 2674936), (11, 1945408), (16, 1337468), (22, 972704), (32, 668734), (44, 486352), (64, 334367), (88, 243176), (113, 189376), (176, 121588), (226, 94688), (269, 79552), (352, 60794), (452, 47344), (538, 39776), (704, 30397), (904, 23672), (1076, 19888), (1243, 17216), (1808, 11836), (2152, 9944), (2486, 8608), (2959, 7232), (3616, 5918), (4304, 4972)]