21726990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{3307}}^1$

素因数の和:3393

約数の個数: 48

約数和(自身を含む): 57281328

約数和(自身を除く): 35554338

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 73, 90, 146, 219, 365, 438, 657, 730, 1095, 1314, 2190, 3285, 3307, 6570, 6614, 9921, 16535, 19842, 29763, 33070, 49605, 59526, 99210, 148815, 241411, 297630, 482822, 724233, 1207055, 1448466, 2172699, 2414110, 3621165, 4345398, 7242330, 10863495, 21726990]

約数ペア:

[(1, 21726990), (2, 10863495), (3, 7242330), (5, 4345398), (6, 3621165), (9, 2414110), (10, 2172699), (15, 1448466), (18, 1207055), (30, 724233), (45, 482822), (73, 297630), (90, 241411), (146, 148815), (219, 99210), (365, 59526), (438, 49605), (657, 33070), (730, 29763), (1095, 19842), (1314, 16535), (2190, 9921), (3285, 6614), (3307, 6570)]