21839625

素因数分解:

$3^5\times 5^3\times {\mathrm{719}}^1$

素因数の和:749

約数の個数: 48

約数和(自身を含む): 40884480

約数和(自身を除く): 19044855

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 125, 135, 225, 243, 375, 405, 675, 719, 1125, 1215, 2025, 2157, 3375, 3595, 6075, 6471, 10125, 10785, 17975, 19413, 30375, 32355, 53925, 58239, 89875, 97065, 161775, 174717, 269625, 291195, 485325, 808875, 873585, 1455975, 2426625, 4367925, 7279875, 21839625]

約数ペア:

[(1, 21839625), (3, 7279875), (5, 4367925), (9, 2426625), (15, 1455975), (25, 873585), (27, 808875), (45, 485325), (75, 291195), (81, 269625), (125, 174717), (135, 161775), (225, 97065), (243, 89875), (375, 58239), (405, 53925), (675, 32355), (719, 30375), (1125, 19413), (1215, 17975), (2025, 10785), (2157, 10125), (3375, 6471), (3595, 6075)]