19958490

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{1051}}^1$

素因数の和:1275

約数の個数: 48

約数和(自身を含む): 52187616

約数和(自身を除く): 32229126

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 211, 422, 633, 1051, 1055, 1266, 1899, 2102, 2110, 3153, 3165, 3798, 5255, 6306, 6330, 9459, 9495, 10510, 15765, 18918, 18990, 31530, 47295, 94590, 221761, 443522, 665283, 1108805, 1330566, 1995849, 2217610, 3326415, 3991698, 6652830, 9979245, 19958490]

約数ペア:

[(1, 19958490), (2, 9979245), (3, 6652830), (5, 3991698), (6, 3326415), (9, 2217610), (10, 1995849), (15, 1330566), (18, 1108805), (30, 665283), (45, 443522), (90, 221761), (211, 94590), (422, 47295), (633, 31530), (1051, 18990), (1055, 18918), (1266, 15765), (1899, 10510), (2102, 9495), (2110, 9459), (3153, 6330), (3165, 6306), (3798, 5255)]