18876572

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{541}}^1$

素因数の和:630

約数の個数: 48

約数和(自身を含む): 39518304

約数和(自身を除く): 20641732

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 61, 122, 143, 244, 286, 541, 572, 671, 793, 1082, 1342, 1586, 2164, 2684, 3172, 5951, 7033, 8723, 11902, 14066, 17446, 23804, 28132, 33001, 34892, 66002, 77363, 132004, 154726, 309452, 363011, 429013, 726022, 858026, 1452044, 1716052, 4719143, 9438286, 18876572]

約数ペア:

[(1, 18876572), (2, 9438286), (4, 4719143), (11, 1716052), (13, 1452044), (22, 858026), (26, 726022), (44, 429013), (52, 363011), (61, 309452), (122, 154726), (143, 132004), (244, 77363), (286, 66002), (541, 34892), (572, 33001), (671, 28132), (793, 23804), (1082, 17446), (1342, 14066), (1586, 11902), (2164, 8723), (2684, 7033), (3172, 5951)]