21998655

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{23279}}^1$

素因数の和:23300

約数の個数: 32

約数和(自身を含む): 44697600

約数和(自身を除く): 22698945

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 23279, 69837, 116395, 162953, 209511, 349185, 488859, 628533, 814765, 1047555, 1466577, 2444295, 3142665, 4399731, 7332885, 21998655]

約数ペア:

[(1, 21998655), (3, 7332885), (5, 4399731), (7, 3142665), (9, 2444295), (15, 1466577), (21, 1047555), (27, 814765), (35, 628533), (45, 488859), (63, 349185), (105, 209511), (135, 162953), (189, 116395), (315, 69837), (945, 23279)]