21143946

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:207

約数の個数: 64

約数和(自身を含む): 46884096

約数和(自身を除く): 25740150

約数列:

[1, 2, 3, 6, 23, 37, 41, 46, 69, 74, 82, 101, 111, 123, 138, 202, 222, 246, 303, 606, 851, 943, 1517, 1702, 1886, 2323, 2553, 2829, 3034, 3737, 4141, 4551, 4646, 5106, 5658, 6969, 7474, 8282, 9102, 11211, 12423, 13938, 22422, 24846, 34891, 69782, 85951, 95243, 104673, 153217, 171902, 190486, 209346, 257853, 285729, 306434, 459651, 515706, 571458, 919302, 3523991, 7047982, 10571973, 21143946]

約数ペア:

[(1, 21143946), (2, 10571973), (3, 7047982), (6, 3523991), (23, 919302), (37, 571458), (41, 515706), (46, 459651), (69, 306434), (74, 285729), (82, 257853), (101, 209346), (111, 190486), (123, 171902), (138, 153217), (202, 104673), (222, 95243), (246, 85951), (303, 69782), (606, 34891), (851, 24846), (943, 22422), (1517, 13938), (1702, 12423), (1886, 11211), (2323, 9102), (2553, 8282), (2829, 7474), (3034, 6969), (3737, 5658), (4141, 5106), (4551, 4646)]