19907470

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{1321}}^1$

素因数の和:1476

約数の個数: 32

約数和(自身を含む): 39406176

約数和(自身を除く): 19498706

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 137, 274, 685, 1321, 1370, 1507, 2642, 3014, 6605, 7535, 13210, 14531, 15070, 29062, 72655, 145310, 180977, 361954, 904885, 1809770, 1990747, 3981494, 9953735, 19907470]

約数ペア:

[(1, 19907470), (2, 9953735), (5, 3981494), (10, 1990747), (11, 1809770), (22, 904885), (55, 361954), (110, 180977), (137, 145310), (274, 72655), (685, 29062), (1321, 15070), (1370, 14531), (1507, 13210), (2642, 7535), (3014, 6605)]