21130130

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{3821}}^1$

素因数の和:3914

約数の個数: 32

約数和(自身を含む): 44029440

約数和(自身を除く): 22899310

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 79, 158, 395, 553, 790, 1106, 2765, 3821, 5530, 7642, 19105, 26747, 38210, 53494, 133735, 267470, 301859, 603718, 1509295, 2113013, 3018590, 4226026, 10565065, 21130130]

約数ペア:

[(1, 21130130), (2, 10565065), (5, 4226026), (7, 3018590), (10, 2113013), (14, 1509295), (35, 603718), (70, 301859), (79, 267470), (158, 133735), (395, 53494), (553, 38210), (790, 26747), (1106, 19105), (2765, 7642), (3821, 5530)]