21070770

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{373}}^1$

素因数の和:659

約数の個数: 64

約数和(自身を含む): 58164480

約数和(自身を除く): 37093710

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 269, 373, 538, 746, 807, 1119, 1345, 1614, 1865, 1883, 2238, 2611, 2690, 3730, 3766, 4035, 5222, 5595, 5649, 7833, 8070, 9415, 11190, 11298, 13055, 15666, 18830, 26110, 28245, 39165, 56490, 78330, 100337, 200674, 301011, 501685, 602022, 702359, 1003370, 1404718, 1505055, 2107077, 3010110, 3511795, 4214154, 7023590, 10535385, 21070770]

約数ペア:

[(1, 21070770), (2, 10535385), (3, 7023590), (5, 4214154), (6, 3511795), (7, 3010110), (10, 2107077), (14, 1505055), (15, 1404718), (21, 1003370), (30, 702359), (35, 602022), (42, 501685), (70, 301011), (105, 200674), (210, 100337), (269, 78330), (373, 56490), (538, 39165), (746, 28245), (807, 26110), (1119, 18830), (1345, 15666), (1614, 13055), (1865, 11298), (1883, 11190), (2238, 9415), (2611, 8070), (2690, 7833), (3730, 5649), (3766, 5595), (4035, 5222)]