21414180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1$

素因数の和:469

約数の個数: 96

約数和(自身を含む): 64189440

約数和(自身を除く): 42775260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 31, 58, 60, 62, 87, 93, 116, 124, 145, 155, 174, 186, 290, 310, 348, 372, 397, 435, 465, 580, 620, 794, 870, 899, 930, 1191, 1588, 1740, 1798, 1860, 1985, 2382, 2697, 3596, 3970, 4495, 4764, 5394, 5955, 7940, 8990, 10788, 11513, 11910, 12307, 13485, 17980, 23026, 23820, 24614, 26970, 34539, 36921, 46052, 49228, 53940, 57565, 61535, 69078, 73842, 115130, 123070, 138156, 147684, 172695, 184605, 230260, 246140, 345390, 356903, 369210, 690780, 713806, 738420, 1070709, 1427612, 1784515, 2141418, 3569030, 4282836, 5353545, 7138060, 10707090, 21414180]

約数ペア:

[(1, 21414180), (2, 10707090), (3, 7138060), (4, 5353545), (5, 4282836), (6, 3569030), (10, 2141418), (12, 1784515), (15, 1427612), (20, 1070709), (29, 738420), (30, 713806), (31, 690780), (58, 369210), (60, 356903), (62, 345390), (87, 246140), (93, 230260), (116, 184605), (124, 172695), (145, 147684), (155, 138156), (174, 123070), (186, 115130), (290, 73842), (310, 69078), (348, 61535), (372, 57565), (397, 53940), (435, 49228), (465, 46052), (580, 36921), (620, 34539), (794, 26970), (870, 24614), (899, 23820), (930, 23026), (1191, 17980), (1588, 13485), (1740, 12307), (1798, 11910), (1860, 11513), (1985, 10788), (2382, 8990), (2697, 7940), (3596, 5955), (3970, 5394), (4495, 4764)]