31616559

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{379}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 53114880

約数和(自身を除く): 21498321

約数列:

[1, 3, 9, 13, 23, 31, 39, 69, 93, 117, 207, 279, 299, 379, 403, 713, 897, 1137, 1209, 2139, 2691, 3411, 3627, 4927, 6417, 8717, 9269, 11749, 14781, 26151, 27807, 35247, 44343, 78453, 83421, 105741, 113321, 152737, 270227, 339963, 458211, 810681, 1019889, 1374633, 2432043, 3512951, 10538853, 31616559]

約数ペア:

[(1, 31616559), (3, 10538853), (9, 3512951), (13, 2432043), (23, 1374633), (31, 1019889), (39, 810681), (69, 458211), (93, 339963), (117, 270227), (207, 152737), (279, 113321), (299, 105741), (379, 83421), (403, 78453), (713, 44343), (897, 35247), (1137, 27807), (1209, 26151), (2139, 14781), (2691, 11749), (3411, 9269), (3627, 8717), (4927, 6417)]