20003128215

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2609671}}^1$

素因数の和:2609759

約数の個数: 32

約数和(自身を含む): 37078219776

約数和(自身を除く): 17075091561

約数列:

[1, 3, 5, 7, 15, 21, 35, 73, 105, 219, 365, 511, 1095, 1533, 2555, 7665, 2609671, 7829013, 13048355, 18267697, 39145065, 54803091, 91338485, 190505983, 274015455, 571517949, 952529915, 1333541881, 2857589745, 4000625643, 6667709405, 20003128215]

約数ペア:

[(1, 20003128215), (3, 6667709405), (5, 4000625643), (7, 2857589745), (15, 1333541881), (21, 952529915), (35, 571517949), (73, 274015455), (105, 190505983), (219, 91338485), (365, 54803091), (511, 39145065), (1095, 18267697), (1533, 13048355), (2555, 7829013), (7665, 2609671)]