21232935

素因数分解:

$3^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{509}}^1$

素因数の和:629

約数の個数: 40

約数和(自身を含む): 38507040

約数和(自身を除く): 17274105

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 103, 135, 309, 405, 509, 515, 927, 1527, 1545, 2545, 2781, 4581, 4635, 7635, 8343, 13743, 13905, 22905, 41229, 41715, 52427, 68715, 157281, 206145, 262135, 471843, 786405, 1415529, 2359215, 4246587, 7077645, 21232935]

約数ペア:

[(1, 21232935), (3, 7077645), (5, 4246587), (9, 2359215), (15, 1415529), (27, 786405), (45, 471843), (81, 262135), (103, 206145), (135, 157281), (309, 68715), (405, 52427), (509, 41715), (515, 41229), (927, 22905), (1527, 13905), (1545, 13743), (2545, 8343), (2781, 7635), (4581, 4635)]