21142330

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{173}}^1$

素因数の和:303

約数の個数: 48

約数和(自身を含む): 42488712

約数和(自身を除く): 21346382

約数列:

[1, 2, 5, 10, 11, 22, 55, 101, 110, 121, 173, 202, 242, 346, 505, 605, 865, 1010, 1111, 1210, 1730, 1903, 2222, 3806, 5555, 9515, 11110, 12221, 17473, 19030, 20933, 24442, 34946, 41866, 61105, 87365, 104665, 122210, 174730, 192203, 209330, 384406, 961015, 1922030, 2114233, 4228466, 10571165, 21142330]

約数ペア:

[(1, 21142330), (2, 10571165), (5, 4228466), (10, 2114233), (11, 1922030), (22, 961015), (55, 384406), (101, 209330), (110, 192203), (121, 174730), (173, 122210), (202, 104665), (242, 87365), (346, 61105), (505, 41866), (605, 34946), (865, 24442), (1010, 20933), (1111, 19030), (1210, 17473), (1730, 12221), (1903, 11110), (2222, 9515), (3806, 5555)]