20686518

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{1009}}^1$

素因数の和:1101

約数の個数: 48

約数和(自身を含む): 48213360

約数和(自身を除く): 27526842

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 67, 102, 134, 153, 201, 306, 402, 603, 1009, 1139, 1206, 2018, 2278, 3027, 3417, 6054, 6834, 9081, 10251, 17153, 18162, 20502, 34306, 51459, 67603, 102918, 135206, 154377, 202809, 308754, 405618, 608427, 1149251, 1216854, 2298502, 3447753, 6895506, 10343259, 20686518]

約数ペア:

[(1, 20686518), (2, 10343259), (3, 6895506), (6, 3447753), (9, 2298502), (17, 1216854), (18, 1149251), (34, 608427), (51, 405618), (67, 308754), (102, 202809), (134, 154377), (153, 135206), (201, 102918), (306, 67603), (402, 51459), (603, 34306), (1009, 20502), (1139, 18162), (1206, 17153), (2018, 10251), (2278, 9081), (3027, 6834), (3417, 6054)]