21952610

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{491}}^1$

素因数の和:778

約数の個数: 32

約数和(自身を含む): 42083712

約数和(自身を除く): 20131102

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 263, 491, 526, 982, 1315, 2455, 2630, 4471, 4910, 8347, 8942, 16694, 22355, 41735, 44710, 83470, 129133, 258266, 645665, 1291330, 2195261, 4390522, 10976305, 21952610]

約数ペア:

[(1, 21952610), (2, 10976305), (5, 4390522), (10, 2195261), (17, 1291330), (34, 645665), (85, 258266), (170, 129133), (263, 83470), (491, 44710), (526, 41735), (982, 22355), (1315, 16694), (2455, 8942), (2630, 8347), (4471, 4910)]