21270750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{79}}^1\times {\mathrm{359}}^1$

素因数の和:458

約数の個数: 64

約数和(自身を含む): 53913600

約数和(自身を除く): 32642850

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 79, 125, 150, 158, 237, 250, 359, 375, 395, 474, 718, 750, 790, 1077, 1185, 1795, 1975, 2154, 2370, 3590, 3950, 5385, 5925, 8975, 9875, 10770, 11850, 17950, 19750, 26925, 28361, 29625, 44875, 53850, 56722, 59250, 85083, 89750, 134625, 141805, 170166, 269250, 283610, 425415, 709025, 850830, 1418050, 2127075, 3545125, 4254150, 7090250, 10635375, 21270750]

約数ペア:

[(1, 21270750), (2, 10635375), (3, 7090250), (5, 4254150), (6, 3545125), (10, 2127075), (15, 1418050), (25, 850830), (30, 709025), (50, 425415), (75, 283610), (79, 269250), (125, 170166), (150, 141805), (158, 134625), (237, 89750), (250, 85083), (359, 59250), (375, 56722), (395, 53850), (474, 44875), (718, 29625), (750, 28361), (790, 26925), (1077, 19750), (1185, 17950), (1795, 11850), (1975, 10770), (2154, 9875), (2370, 8975), (3590, 5925), (3950, 5385)]