21373980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2269}}^1$

素因数の和:2438

約数の個数: 48

約数和(自身を含む): 60254880

約数和(自身を除く): 38880900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 157, 314, 471, 628, 785, 942, 1570, 1884, 2269, 2355, 3140, 4538, 4710, 6807, 9076, 9420, 11345, 13614, 22690, 27228, 34035, 45380, 68070, 136140, 356233, 712466, 1068699, 1424932, 1781165, 2137398, 3562330, 4274796, 5343495, 7124660, 10686990, 21373980]

約数ペア:

[(1, 21373980), (2, 10686990), (3, 7124660), (4, 5343495), (5, 4274796), (6, 3562330), (10, 2137398), (12, 1781165), (15, 1424932), (20, 1068699), (30, 712466), (60, 356233), (157, 136140), (314, 68070), (471, 45380), (628, 34035), (785, 27228), (942, 22690), (1570, 13614), (1884, 11345), (2269, 9420), (2355, 9076), (3140, 6807), (4538, 4710)]