20992246

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^2\times {\mathrm{41}}^1$

素因数の和:145

約数の個数: 48

約数和(自身を含む): 38292912

約数和(自身を除く): 17300666

約数列:

[1, 2, 11, 17, 22, 34, 37, 41, 74, 82, 187, 374, 407, 451, 629, 697, 814, 902, 1258, 1369, 1394, 1517, 2738, 3034, 6919, 7667, 13838, 15059, 15334, 16687, 23273, 25789, 30118, 33374, 46546, 51578, 56129, 112258, 256003, 283679, 512006, 567358, 617419, 954193, 1234838, 1908386, 10496123, 20992246]

約数ペア:

[(1, 20992246), (2, 10496123), (11, 1908386), (17, 1234838), (22, 954193), (34, 617419), (37, 567358), (41, 512006), (74, 283679), (82, 256003), (187, 112258), (374, 56129), (407, 51578), (451, 46546), (629, 33374), (697, 30118), (814, 25789), (902, 23273), (1258, 16687), (1369, 15334), (1394, 15059), (1517, 13838), (2738, 7667), (3034, 6919)]