21158460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:164

約数の個数: 144

約数和(自身を含む): 68245632

約数和(自身を除く): 47087172

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 41, 45, 47, 60, 61, 82, 90, 94, 122, 123, 141, 164, 180, 183, 188, 205, 235, 244, 246, 282, 305, 366, 369, 410, 423, 470, 492, 549, 564, 610, 615, 705, 732, 738, 820, 846, 915, 940, 1098, 1220, 1230, 1410, 1476, 1692, 1830, 1845, 1927, 2115, 2196, 2460, 2501, 2745, 2820, 2867, 3660, 3690, 3854, 4230, 5002, 5490, 5734, 5781, 7380, 7503, 7708, 8460, 8601, 9635, 10004, 10980, 11468, 11562, 12505, 14335, 15006, 17202, 17343, 19270, 22509, 23124, 25010, 25803, 28670, 28905, 30012, 34404, 34686, 37515, 38540, 43005, 45018, 50020, 51606, 57340, 57810, 69372, 75030, 86010, 86715, 90036, 103212, 112545, 115620, 117547, 129015, 150060, 172020, 173430, 225090, 235094, 258030, 346860, 352641, 450180, 470188, 516060, 587735, 705282, 1057923, 1175470, 1410564, 1763205, 2115846, 2350940, 3526410, 4231692, 5289615, 7052820, 10579230, 21158460]

約数ペア:

[(1, 21158460), (2, 10579230), (3, 7052820), (4, 5289615), (5, 4231692), (6, 3526410), (9, 2350940), (10, 2115846), (12, 1763205), (15, 1410564), (18, 1175470), (20, 1057923), (30, 705282), (36, 587735), (41, 516060), (45, 470188), (47, 450180), (60, 352641), (61, 346860), (82, 258030), (90, 235094), (94, 225090), (122, 173430), (123, 172020), (141, 150060), (164, 129015), (180, 117547), (183, 115620), (188, 112545), (205, 103212), (235, 90036), (244, 86715), (246, 86010), (282, 75030), (305, 69372), (366, 57810), (369, 57340), (410, 51606), (423, 50020), (470, 45018), (492, 43005), (549, 38540), (564, 37515), (610, 34686), (615, 34404), (705, 30012), (732, 28905), (738, 28670), (820, 25803), (846, 25010), (915, 23124), (940, 22509), (1098, 19270), (1220, 17343), (1230, 17202), (1410, 15006), (1476, 14335), (1692, 12505), (1830, 11562), (1845, 11468), (1927, 10980), (2115, 10004), (2196, 9635), (2460, 8601), (2501, 8460), (2745, 7708), (2820, 7503), (2867, 7380), (3660, 5781), (3690, 5734), (3854, 5490), (4230, 5002)]