20928915

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{22147}}^1$

素因数の和:22168

約数の個数: 32

約数和(自身を含む): 42524160

約数和(自身を除く): 21595245

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 22147, 66441, 110735, 155029, 199323, 332205, 465087, 597969, 775145, 996615, 1395261, 2325435, 2989845, 4185783, 6976305, 20928915]

約数ペア:

[(1, 20928915), (3, 6976305), (5, 4185783), (7, 2989845), (9, 2325435), (15, 1395261), (21, 996615), (27, 775145), (35, 597969), (45, 465087), (63, 332205), (105, 199323), (135, 155029), (189, 110735), (315, 66441), (945, 22147)]