21644260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2659}}^1$

素因数の和:2716

約数の個数: 48

約数和(自身を含む): 50944320

約数和(自身を除く): 29300060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 740, 814, 1628, 2035, 2659, 4070, 5318, 8140, 10636, 13295, 26590, 29249, 53180, 58498, 98383, 116996, 146245, 196766, 292490, 393532, 491915, 584980, 983830, 1082213, 1967660, 2164426, 4328852, 5411065, 10822130, 21644260]

約数ペア:

[(1, 21644260), (2, 10822130), (4, 5411065), (5, 4328852), (10, 2164426), (11, 1967660), (20, 1082213), (22, 983830), (37, 584980), (44, 491915), (55, 393532), (74, 292490), (110, 196766), (148, 146245), (185, 116996), (220, 98383), (370, 58498), (407, 53180), (740, 29249), (814, 26590), (1628, 13295), (2035, 10636), (2659, 8140), (4070, 5318)]