18597436

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:143

約数の個数: 72

約数和(自身を含む): 40028688

約数和(自身を除く): 21431252

約数列:

[1, 2, 4, 11, 13, 22, 26, 41, 44, 52, 61, 82, 122, 143, 164, 169, 244, 286, 338, 451, 533, 572, 671, 676, 793, 902, 1066, 1342, 1586, 1804, 1859, 2132, 2501, 2684, 3172, 3718, 5002, 5863, 6929, 7436, 8723, 10004, 10309, 11726, 13858, 17446, 20618, 23452, 27511, 27716, 32513, 34892, 41236, 55022, 65026, 76219, 110044, 113399, 130052, 152438, 226798, 304876, 357643, 422669, 453596, 715286, 845338, 1430572, 1690676, 4649359, 9298718, 18597436]

約数ペア:

[(1, 18597436), (2, 9298718), (4, 4649359), (11, 1690676), (13, 1430572), (22, 845338), (26, 715286), (41, 453596), (44, 422669), (52, 357643), (61, 304876), (82, 226798), (122, 152438), (143, 130052), (164, 113399), (169, 110044), (244, 76219), (286, 65026), (338, 55022), (451, 41236), (533, 34892), (572, 32513), (671, 27716), (676, 27511), (793, 23452), (902, 20618), (1066, 17446), (1342, 13858), (1586, 11726), (1804, 10309), (1859, 10004), (2132, 8723), (2501, 7436), (2684, 6929), (3172, 5863), (3718, 5002)]