20784676

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{751}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 43206912

約数和(自身を除く): 22422236

約数列:

[1, 2, 4, 11, 17, 22, 34, 37, 44, 68, 74, 148, 187, 374, 407, 629, 748, 751, 814, 1258, 1502, 1628, 2516, 3004, 6919, 8261, 12767, 13838, 16522, 25534, 27676, 27787, 33044, 51068, 55574, 111148, 140437, 280874, 305657, 472379, 561748, 611314, 944758, 1222628, 1889516, 5196169, 10392338, 20784676]

約数ペア:

[(1, 20784676), (2, 10392338), (4, 5196169), (11, 1889516), (17, 1222628), (22, 944758), (34, 611314), (37, 561748), (44, 472379), (68, 305657), (74, 280874), (148, 140437), (187, 111148), (374, 55574), (407, 51068), (629, 33044), (748, 27787), (751, 27676), (814, 25534), (1258, 16522), (1502, 13838), (1628, 12767), (2516, 8261), (3004, 6919)]