21354120

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2579}}^1$

素因数の和:2619

約数の個数: 96

約数和(自身を含む): 72446400

約数和(自身を除く): 51092280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 36, 40, 45, 46, 60, 69, 72, 90, 92, 115, 120, 138, 180, 184, 207, 230, 276, 345, 360, 414, 460, 552, 690, 828, 920, 1035, 1380, 1656, 2070, 2579, 2760, 4140, 5158, 7737, 8280, 10316, 12895, 15474, 20632, 23211, 25790, 30948, 38685, 46422, 51580, 59317, 61896, 77370, 92844, 103160, 116055, 118634, 154740, 177951, 185688, 232110, 237268, 296585, 309480, 355902, 464220, 474536, 533853, 593170, 711804, 889755, 928440, 1067706, 1186340, 1423608, 1779510, 2135412, 2372680, 2669265, 3559020, 4270824, 5338530, 7118040, 10677060, 21354120]

約数ペア:

[(1, 21354120), (2, 10677060), (3, 7118040), (4, 5338530), (5, 4270824), (6, 3559020), (8, 2669265), (9, 2372680), (10, 2135412), (12, 1779510), (15, 1423608), (18, 1186340), (20, 1067706), (23, 928440), (24, 889755), (30, 711804), (36, 593170), (40, 533853), (45, 474536), (46, 464220), (60, 355902), (69, 309480), (72, 296585), (90, 237268), (92, 232110), (115, 185688), (120, 177951), (138, 154740), (180, 118634), (184, 116055), (207, 103160), (230, 92844), (276, 77370), (345, 61896), (360, 59317), (414, 51580), (460, 46422), (552, 38685), (690, 30948), (828, 25790), (920, 23211), (1035, 20632), (1380, 15474), (1656, 12895), (2070, 10316), (2579, 8280), (2760, 7737), (4140, 5158)]