19516816

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{593}}^1$

素因数の和:640

約数の個数: 60

約数和(自身を含む): 44083116

約数和(自身を除く): 24566300

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 121, 136, 176, 187, 242, 272, 374, 484, 593, 748, 968, 1186, 1496, 1936, 2057, 2372, 2992, 4114, 4744, 6523, 8228, 9488, 10081, 13046, 16456, 20162, 26092, 32912, 40324, 52184, 71753, 80648, 104368, 110891, 143506, 161296, 221782, 287012, 443564, 574024, 887128, 1148048, 1219801, 1774256, 2439602, 4879204, 9758408, 19516816]

約数ペア:

[(1, 19516816), (2, 9758408), (4, 4879204), (8, 2439602), (11, 1774256), (16, 1219801), (17, 1148048), (22, 887128), (34, 574024), (44, 443564), (68, 287012), (88, 221782), (121, 161296), (136, 143506), (176, 110891), (187, 104368), (242, 80648), (272, 71753), (374, 52184), (484, 40324), (593, 32912), (748, 26092), (968, 20162), (1186, 16456), (1496, 13046), (1936, 10081), (2057, 9488), (2372, 8228), (2992, 6523), (4114, 4744)]