21305370

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{739}}^1$

素因数の和:811

約数の個数: 48

約数和(自身を含む): 52907040

約数和(自身を除く): 31601670

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 155, 186, 310, 465, 739, 930, 961, 1478, 1922, 2217, 2883, 3695, 4434, 4805, 5766, 7390, 9610, 11085, 14415, 22170, 22909, 28830, 45818, 68727, 114545, 137454, 229090, 343635, 687270, 710179, 1420358, 2130537, 3550895, 4261074, 7101790, 10652685, 21305370]

約数ペア:

[(1, 21305370), (2, 10652685), (3, 7101790), (5, 4261074), (6, 3550895), (10, 2130537), (15, 1420358), (30, 710179), (31, 687270), (62, 343635), (93, 229090), (155, 137454), (186, 114545), (310, 68727), (465, 45818), (739, 28830), (930, 22909), (961, 22170), (1478, 14415), (1922, 11085), (2217, 9610), (2883, 7390), (3695, 5766), (4434, 4805)]