20538108

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{907}}^1$

素因数の和:971

約数の個数: 72

約数和(自身を含む): 56517552

約数和(自身を除く): 35979444

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 37, 51, 68, 74, 102, 111, 148, 153, 204, 222, 306, 333, 444, 612, 629, 666, 907, 1258, 1332, 1814, 1887, 2516, 2721, 3628, 3774, 5442, 5661, 7548, 8163, 10884, 11322, 15419, 16326, 22644, 30838, 32652, 33559, 46257, 61676, 67118, 92514, 100677, 134236, 138771, 185028, 201354, 277542, 302031, 402708, 555084, 570503, 604062, 1141006, 1208124, 1711509, 2282012, 3423018, 5134527, 6846036, 10269054, 20538108]

約数ペア:

[(1, 20538108), (2, 10269054), (3, 6846036), (4, 5134527), (6, 3423018), (9, 2282012), (12, 1711509), (17, 1208124), (18, 1141006), (34, 604062), (36, 570503), (37, 555084), (51, 402708), (68, 302031), (74, 277542), (102, 201354), (111, 185028), (148, 138771), (153, 134236), (204, 100677), (222, 92514), (306, 67118), (333, 61676), (444, 46257), (612, 33559), (629, 32652), (666, 30838), (907, 22644), (1258, 16326), (1332, 15419), (1814, 11322), (1887, 10884), (2516, 8163), (2721, 7548), (3628, 5661), (3774, 5442)]