21493170

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1823}}^1$

素因数の和:1967

約数の個数: 48

約数和(自身を含む): 56339712

約数和(自身を除く): 34846542

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 131, 262, 393, 655, 786, 1179, 1310, 1823, 1965, 2358, 3646, 3930, 5469, 5895, 9115, 10938, 11790, 16407, 18230, 27345, 32814, 54690, 82035, 164070, 238813, 477626, 716439, 1194065, 1432878, 2149317, 2388130, 3582195, 4298634, 7164390, 10746585, 21493170]

約数ペア:

[(1, 21493170), (2, 10746585), (3, 7164390), (5, 4298634), (6, 3582195), (9, 2388130), (10, 2149317), (15, 1432878), (18, 1194065), (30, 716439), (45, 477626), (90, 238813), (131, 164070), (262, 82035), (393, 54690), (655, 32814), (786, 27345), (1179, 18230), (1310, 16407), (1823, 11790), (1965, 10938), (2358, 9115), (3646, 5895), (3930, 5469)]