20563268

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{743}}^1$

素因数の和:812

約数の個数: 48

約数和(自身を含む): 42747264

約数和(自身を除く): 22183996

約数列:

[1, 2, 4, 11, 17, 22, 34, 37, 44, 68, 74, 148, 187, 374, 407, 629, 743, 748, 814, 1258, 1486, 1628, 2516, 2972, 6919, 8173, 12631, 13838, 16346, 25262, 27491, 27676, 32692, 50524, 54982, 109964, 138941, 277882, 302401, 467347, 555764, 604802, 934694, 1209604, 1869388, 5140817, 10281634, 20563268]

約数ペア:

[(1, 20563268), (2, 10281634), (4, 5140817), (11, 1869388), (17, 1209604), (22, 934694), (34, 604802), (37, 555764), (44, 467347), (68, 302401), (74, 277882), (148, 138941), (187, 109964), (374, 54982), (407, 50524), (629, 32692), (743, 27676), (748, 27491), (814, 25262), (1258, 16346), (1486, 13838), (1628, 12631), (2516, 8173), (2972, 6919)]