19851272

素因数分解:

$2^3\times 7^2\times {\mathrm{89}}^1\times {\mathrm{569}}^1$

素因数の和:678

約数の個数: 48

約数和(自身を含む): 43861500

約数和(自身を除く): 24010228

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 89, 98, 178, 196, 356, 392, 569, 623, 712, 1138, 1246, 2276, 2492, 3983, 4361, 4552, 4984, 7966, 8722, 15932, 17444, 27881, 31864, 34888, 50641, 55762, 101282, 111524, 202564, 223048, 354487, 405128, 708974, 1417948, 2481409, 2835896, 4962818, 9925636, 19851272]

約数ペア:

[(1, 19851272), (2, 9925636), (4, 4962818), (7, 2835896), (8, 2481409), (14, 1417948), (28, 708974), (49, 405128), (56, 354487), (89, 223048), (98, 202564), (178, 111524), (196, 101282), (356, 55762), (392, 50641), (569, 34888), (623, 31864), (712, 27881), (1138, 17444), (1246, 15932), (2276, 8722), (2492, 7966), (3983, 4984), (4361, 4552)]