21665820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1931}}^1$

素因数の和:1971

約数の個数: 96

約数和(自身を含む): 70108416

約数和(自身を除く): 48442596

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 17, 20, 22, 30, 33, 34, 44, 51, 55, 60, 66, 68, 85, 102, 110, 132, 165, 170, 187, 204, 220, 255, 330, 340, 374, 510, 561, 660, 748, 935, 1020, 1122, 1870, 1931, 2244, 2805, 3740, 3862, 5610, 5793, 7724, 9655, 11220, 11586, 19310, 21241, 23172, 28965, 32827, 38620, 42482, 57930, 63723, 65654, 84964, 98481, 106205, 115860, 127446, 131308, 164135, 196962, 212410, 254892, 318615, 328270, 361097, 393924, 424820, 492405, 637230, 656540, 722194, 984810, 1083291, 1274460, 1444388, 1805485, 1969620, 2166582, 3610970, 4333164, 5416455, 7221940, 10832910, 21665820]

約数ペア:

[(1, 21665820), (2, 10832910), (3, 7221940), (4, 5416455), (5, 4333164), (6, 3610970), (10, 2166582), (11, 1969620), (12, 1805485), (15, 1444388), (17, 1274460), (20, 1083291), (22, 984810), (30, 722194), (33, 656540), (34, 637230), (44, 492405), (51, 424820), (55, 393924), (60, 361097), (66, 328270), (68, 318615), (85, 254892), (102, 212410), (110, 196962), (132, 164135), (165, 131308), (170, 127446), (187, 115860), (204, 106205), (220, 98481), (255, 84964), (330, 65654), (340, 63723), (374, 57930), (510, 42482), (561, 38620), (660, 32827), (748, 28965), (935, 23172), (1020, 21241), (1122, 19310), (1870, 11586), (1931, 11220), (2244, 9655), (2805, 7724), (3740, 5793), (3862, 5610)]