21151864

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{3761}}^1$

素因数の和:3823

約数の個数: 32

約数和(自身を含む): 42886800

約数和(自身を除く): 21734936

約数列:

[1, 2, 4, 8, 19, 37, 38, 74, 76, 148, 152, 296, 703, 1406, 2812, 3761, 5624, 7522, 15044, 30088, 71459, 139157, 142918, 278314, 285836, 556628, 571672, 1113256, 2643983, 5287966, 10575932, 21151864]

約数ペア:

[(1, 21151864), (2, 10575932), (4, 5287966), (8, 2643983), (19, 1113256), (37, 571672), (38, 556628), (74, 285836), (76, 278314), (148, 142918), (152, 139157), (296, 71459), (703, 30088), (1406, 15044), (2812, 7522), (3761, 5624)]