21047496

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{653}}^1$

素因数の和:758

約数の個数: 64

約数和(自身を含む): 56505600

約数和(自身を除く): 35458104

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 79, 102, 136, 158, 204, 237, 316, 408, 474, 632, 653, 948, 1306, 1343, 1896, 1959, 2612, 2686, 3918, 4029, 5224, 5372, 7836, 8058, 10744, 11101, 15672, 16116, 22202, 32232, 33303, 44404, 51587, 66606, 88808, 103174, 133212, 154761, 206348, 266424, 309522, 412696, 619044, 876979, 1238088, 1753958, 2630937, 3507916, 5261874, 7015832, 10523748, 21047496]

約数ペア:

[(1, 21047496), (2, 10523748), (3, 7015832), (4, 5261874), (6, 3507916), (8, 2630937), (12, 1753958), (17, 1238088), (24, 876979), (34, 619044), (51, 412696), (68, 309522), (79, 266424), (102, 206348), (136, 154761), (158, 133212), (204, 103174), (237, 88808), (316, 66606), (408, 51587), (474, 44404), (632, 33303), (653, 32232), (948, 22202), (1306, 16116), (1343, 15672), (1896, 11101), (1959, 10744), (2612, 8058), (2686, 7836), (3918, 5372), (4029, 5224)]