21000852495

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{1151}}^1\times {\mathrm{57923}}^1$

素因数の和:59092

約数の個数: 48

約数和(自身を含む): 41638551552

約数和(自身を除く): 20637699057

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 1151, 3453, 5755, 8057, 10359, 17265, 24171, 40285, 51795, 57923, 72513, 120855, 173769, 289615, 362565, 405461, 521307, 868845, 1216383, 2027305, 2606535, 3649149, 6081915, 18245745, 66669373, 200008119, 333346865, 466685611, 600024357, 1000040595, 1400056833, 2333428055, 3000121785, 4200170499, 7000284165, 21000852495]

約数ペア:

[(1, 21000852495), (3, 7000284165), (5, 4200170499), (7, 3000121785), (9, 2333428055), (15, 1400056833), (21, 1000040595), (35, 600024357), (45, 466685611), (63, 333346865), (105, 200008119), (315, 66669373), (1151, 18245745), (3453, 6081915), (5755, 3649149), (8057, 2606535), (10359, 2027305), (17265, 1216383), (24171, 868845), (40285, 521307), (51795, 405461), (57923, 362565), (72513, 289615), (120855, 173769)]