21716145

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2309}}^1$

素因数の和:2350

約数の個数: 48

約数和(自身を含む): 43243200

約数和(自身を除く): 21527055

約数列:

[1, 3, 5, 9, 11, 15, 19, 33, 45, 55, 57, 95, 99, 165, 171, 209, 285, 495, 627, 855, 1045, 1881, 2309, 3135, 6927, 9405, 11545, 20781, 25399, 34635, 43871, 76197, 103905, 126995, 131613, 219355, 228591, 380985, 394839, 482581, 658065, 1142955, 1447743, 1974195, 2412905, 4343229, 7238715, 21716145]

約数ペア:

[(1, 21716145), (3, 7238715), (5, 4343229), (9, 2412905), (11, 1974195), (15, 1447743), (19, 1142955), (33, 658065), (45, 482581), (55, 394839), (57, 380985), (95, 228591), (99, 219355), (165, 131613), (171, 126995), (209, 103905), (285, 76197), (495, 43871), (627, 34635), (855, 25399), (1045, 20781), (1881, 11545), (2309, 9405), (3135, 6927)]