17921970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:488

約数の個数: 96

約数和(自身を含む): 52138944

約数和(自身を除く): 34216974

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 43, 45, 55, 66, 86, 90, 99, 110, 129, 165, 198, 215, 258, 330, 387, 421, 430, 473, 495, 645, 774, 842, 946, 990, 1263, 1290, 1419, 1935, 2105, 2365, 2526, 2838, 3789, 3870, 4210, 4257, 4631, 4730, 6315, 7095, 7578, 8514, 9262, 12630, 13893, 14190, 18103, 18945, 21285, 23155, 27786, 36206, 37890, 41679, 42570, 46310, 54309, 69465, 83358, 90515, 108618, 138930, 162927, 181030, 199133, 208395, 271545, 325854, 398266, 416790, 543090, 597399, 814635, 995665, 1194798, 1629270, 1792197, 1991330, 2986995, 3584394, 5973990, 8960985, 17921970]

約数ペア:

[(1, 17921970), (2, 8960985), (3, 5973990), (5, 3584394), (6, 2986995), (9, 1991330), (10, 1792197), (11, 1629270), (15, 1194798), (18, 995665), (22, 814635), (30, 597399), (33, 543090), (43, 416790), (45, 398266), (55, 325854), (66, 271545), (86, 208395), (90, 199133), (99, 181030), (110, 162927), (129, 138930), (165, 108618), (198, 90515), (215, 83358), (258, 69465), (330, 54309), (387, 46310), (421, 42570), (430, 41679), (473, 37890), (495, 36206), (645, 27786), (774, 23155), (842, 21285), (946, 18945), (990, 18103), (1263, 14190), (1290, 13893), (1419, 12630), (1935, 9262), (2105, 8514), (2365, 7578), (2526, 7095), (2838, 6315), (3789, 4730), (3870, 4631), (4210, 4257)]