21267495

素因数分解:

$3^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{599}}^1$

素因数の和:876

約数の個数: 32

約数和(自身を含む): 38016000

約数和(自身を除く): 16748505

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 263, 599, 789, 1315, 1797, 2367, 2995, 3945, 5391, 7101, 8985, 11835, 16173, 26955, 35505, 80865, 157537, 472611, 787685, 1417833, 2363055, 4253499, 7089165, 21267495]

約数ペア:

[(1, 21267495), (3, 7089165), (5, 4253499), (9, 2363055), (15, 1417833), (27, 787685), (45, 472611), (135, 157537), (263, 80865), (599, 35505), (789, 26955), (1315, 16173), (1797, 11835), (2367, 8985), (2995, 7101), (3945, 5391)]