21350940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{883}}^1$

素因数の和:939

約数の個数: 96

約数和(自身を含む): 66533376

約数和(自身を除く): 45182436

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 31, 39, 52, 60, 62, 65, 78, 93, 124, 130, 155, 156, 186, 195, 260, 310, 372, 390, 403, 465, 620, 780, 806, 883, 930, 1209, 1612, 1766, 1860, 2015, 2418, 2649, 3532, 4030, 4415, 4836, 5298, 6045, 8060, 8830, 10596, 11479, 12090, 13245, 17660, 22958, 24180, 26490, 27373, 34437, 45916, 52980, 54746, 57395, 68874, 82119, 109492, 114790, 136865, 137748, 164238, 172185, 229580, 273730, 328476, 344370, 355849, 410595, 547460, 688740, 711698, 821190, 1067547, 1423396, 1642380, 1779245, 2135094, 3558490, 4270188, 5337735, 7116980, 10675470, 21350940]

約数ペア:

[(1, 21350940), (2, 10675470), (3, 7116980), (4, 5337735), (5, 4270188), (6, 3558490), (10, 2135094), (12, 1779245), (13, 1642380), (15, 1423396), (20, 1067547), (26, 821190), (30, 711698), (31, 688740), (39, 547460), (52, 410595), (60, 355849), (62, 344370), (65, 328476), (78, 273730), (93, 229580), (124, 172185), (130, 164238), (155, 137748), (156, 136865), (186, 114790), (195, 109492), (260, 82119), (310, 68874), (372, 57395), (390, 54746), (403, 52980), (465, 45916), (620, 34437), (780, 27373), (806, 26490), (883, 24180), (930, 22958), (1209, 17660), (1612, 13245), (1766, 12090), (1860, 11479), (2015, 10596), (2418, 8830), (2649, 8060), (3532, 6045), (4030, 5298), (4415, 4836)]