21484870

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{1129}}^1$

素因数の和:1320

約数の個数: 32

約数和(自身を含む): 42469920

約数和(自身を除く): 20985050

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 173, 346, 865, 1129, 1730, 1903, 2258, 3806, 5645, 9515, 11290, 12419, 19030, 24838, 62095, 124190, 195317, 390634, 976585, 1953170, 2148487, 4296974, 10742435, 21484870]

約数ペア:

[(1, 21484870), (2, 10742435), (5, 4296974), (10, 2148487), (11, 1953170), (22, 976585), (55, 390634), (110, 195317), (173, 124190), (346, 62095), (865, 24838), (1129, 19030), (1730, 12419), (1903, 11290), (2258, 9515), (3806, 5645)]