21382686

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1$

素因数の和:210

約数の個数: 96

約数和(自身を含む): 54250560

約数和(自身を除く): 32867874

約数列:

[1, 2, 3, 6, 9, 13, 18, 23, 26, 29, 39, 46, 58, 69, 78, 87, 117, 137, 138, 174, 207, 234, 261, 274, 299, 377, 411, 414, 522, 598, 667, 754, 822, 897, 1131, 1233, 1334, 1781, 1794, 2001, 2262, 2466, 2691, 3151, 3393, 3562, 3973, 4002, 5343, 5382, 6003, 6302, 6786, 7946, 8671, 9453, 10686, 11919, 12006, 16029, 17342, 18906, 23838, 26013, 28359, 32058, 35757, 40963, 51649, 52026, 56718, 71514, 78039, 81926, 91379, 103298, 122889, 154947, 156078, 182758, 245778, 274137, 309894, 368667, 464841, 548274, 737334, 822411, 929682, 1187927, 1644822, 2375854, 3563781, 7127562, 10691343, 21382686]

約数ペア:

[(1, 21382686), (2, 10691343), (3, 7127562), (6, 3563781), (9, 2375854), (13, 1644822), (18, 1187927), (23, 929682), (26, 822411), (29, 737334), (39, 548274), (46, 464841), (58, 368667), (69, 309894), (78, 274137), (87, 245778), (117, 182758), (137, 156078), (138, 154947), (174, 122889), (207, 103298), (234, 91379), (261, 81926), (274, 78039), (299, 71514), (377, 56718), (411, 52026), (414, 51649), (522, 40963), (598, 35757), (667, 32058), (754, 28359), (822, 26013), (897, 23838), (1131, 18906), (1233, 17342), (1334, 16029), (1781, 12006), (1794, 11919), (2001, 10686), (2262, 9453), (2466, 8671), (2691, 7946), (3151, 6786), (3393, 6302), (3562, 6003), (3973, 5382), (4002, 5343)]