20997630

素因数分解:

$2^1\times 3^5\times 5^1\times {\mathrm{8641}}^1$

素因数の和:8663

約数の個数: 48

約数和(自身を含む): 56622384

約数和(自身を除く): 35624754

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 405, 486, 810, 1215, 2430, 8641, 17282, 25923, 43205, 51846, 77769, 86410, 129615, 155538, 233307, 259230, 388845, 466614, 699921, 777690, 1166535, 1399842, 2099763, 2333070, 3499605, 4199526, 6999210, 10498815, 20997630]

約数ペア:

[(1, 20997630), (2, 10498815), (3, 6999210), (5, 4199526), (6, 3499605), (9, 2333070), (10, 2099763), (15, 1399842), (18, 1166535), (27, 777690), (30, 699921), (45, 466614), (54, 388845), (81, 259230), (90, 233307), (135, 155538), (162, 129615), (243, 86410), (270, 77769), (405, 51846), (486, 43205), (810, 25923), (1215, 17282), (2430, 8641)]