21749460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21323}}^1$

素因数の和:21352

約数の個数: 48

約数和(自身を含む): 64483776

約数和(自身を除く): 42734316

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 21323, 42646, 63969, 85292, 106615, 127938, 213230, 255876, 319845, 362491, 426460, 639690, 724982, 1087473, 1279380, 1449964, 1812455, 2174946, 3624910, 4349892, 5437365, 7249820, 10874730, 21749460]

約数ペア:

[(1, 21749460), (2, 10874730), (3, 7249820), (4, 5437365), (5, 4349892), (6, 3624910), (10, 2174946), (12, 1812455), (15, 1449964), (17, 1279380), (20, 1087473), (30, 724982), (34, 639690), (51, 426460), (60, 362491), (68, 319845), (85, 255876), (102, 213230), (170, 127938), (204, 106615), (255, 85292), (340, 63969), (510, 42646), (1020, 21323)]