20917710

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{7043}}^1$

素因数の和:7070

約数の個数: 64

約数和(自身を含む): 60860160

約数和(自身を除く): 39942450

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 27, 30, 33, 45, 54, 55, 66, 90, 99, 110, 135, 165, 198, 270, 297, 330, 495, 594, 990, 1485, 2970, 7043, 14086, 21129, 35215, 42258, 63387, 70430, 77473, 105645, 126774, 154946, 190161, 211290, 232419, 316935, 380322, 387365, 464838, 633870, 697257, 774730, 950805, 1162095, 1394514, 1901610, 2091771, 2324190, 3486285, 4183542, 6972570, 10458855, 20917710]

約数ペア:

[(1, 20917710), (2, 10458855), (3, 6972570), (5, 4183542), (6, 3486285), (9, 2324190), (10, 2091771), (11, 1901610), (15, 1394514), (18, 1162095), (22, 950805), (27, 774730), (30, 697257), (33, 633870), (45, 464838), (54, 387365), (55, 380322), (66, 316935), (90, 232419), (99, 211290), (110, 190161), (135, 154946), (165, 126774), (198, 105645), (270, 77473), (297, 70430), (330, 63387), (495, 42258), (594, 35215), (990, 21129), (1485, 14086), (2970, 7043)]