21979128180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{19279937}}^1$

素因数の和:19279968

約数の個数: 48

約数和(自身を含む): 64780591680

約数和(自身を除く): 42801463500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 19279937, 38559874, 57839811, 77119748, 96399685, 115679622, 192799370, 231359244, 289199055, 366318803, 385598740, 578398110, 732637606, 1098956409, 1156796220, 1465275212, 1831594015, 2197912818, 3663188030, 4395825636, 5494782045, 7326376060, 10989564090, 21979128180]

約数ペア:

[(1, 21979128180), (2, 10989564090), (3, 7326376060), (4, 5494782045), (5, 4395825636), (6, 3663188030), (10, 2197912818), (12, 1831594015), (15, 1465275212), (19, 1156796220), (20, 1098956409), (30, 732637606), (38, 578398110), (57, 385598740), (60, 366318803), (76, 289199055), (95, 231359244), (114, 192799370), (190, 115679622), (228, 96399685), (285, 77119748), (380, 57839811), (570, 38559874), (1140, 19279937)]