19671212

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{97}}^1\times {\mathrm{419}}^1$

素因数の和:542

約数の個数: 36

約数和(自身を含む): 38319960

約数和(自身を除く): 18648748

約数列:

[1, 2, 4, 11, 22, 44, 97, 121, 194, 242, 388, 419, 484, 838, 1067, 1676, 2134, 4268, 4609, 9218, 11737, 18436, 23474, 40643, 46948, 50699, 81286, 101398, 162572, 202796, 447073, 894146, 1788292, 4917803, 9835606, 19671212]

約数ペア:

[(1, 19671212), (2, 9835606), (4, 4917803), (11, 1788292), (22, 894146), (44, 447073), (97, 202796), (121, 162572), (194, 101398), (242, 81286), (388, 50699), (419, 46948), (484, 40643), (838, 23474), (1067, 18436), (1676, 11737), (2134, 9218), (4268, 4609)]