21973358

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:185

約数の個数: 48

約数和(自身を含む): 39070080

約数和(自身を除く): 17096722

約数列:

[1, 2, 11, 22, 29, 31, 58, 62, 101, 121, 202, 242, 319, 341, 638, 682, 899, 1111, 1798, 2222, 2929, 3131, 3509, 3751, 5858, 6262, 7018, 7502, 9889, 12221, 19778, 24442, 32219, 34441, 64438, 68882, 90799, 108779, 181598, 217558, 354409, 378851, 708818, 757702, 998789, 1997578, 10986679, 21973358]

約数ペア:

[(1, 21973358), (2, 10986679), (11, 1997578), (22, 998789), (29, 757702), (31, 708818), (58, 378851), (62, 354409), (101, 217558), (121, 181598), (202, 108779), (242, 90799), (319, 68882), (341, 64438), (638, 34441), (682, 32219), (899, 24442), (1111, 19778), (1798, 12221), (2222, 9889), (2929, 7502), (3131, 7018), (3509, 6262), (3751, 5858)]