20748114

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:180

約数の個数: 72

約数和(自身を含む): 49450752

約数和(自身を除く): 28702638

約数列:

[1, 2, 3, 6, 9, 18, 19, 31, 38, 57, 62, 93, 103, 114, 171, 186, 206, 279, 309, 342, 361, 558, 589, 618, 722, 927, 1083, 1178, 1767, 1854, 1957, 2166, 3193, 3249, 3534, 3914, 5301, 5871, 6386, 6498, 9579, 10602, 11191, 11742, 17613, 19158, 22382, 28737, 33573, 35226, 37183, 57474, 60667, 67146, 74366, 100719, 111549, 121334, 182001, 201438, 223098, 334647, 364002, 546003, 669294, 1092006, 1152673, 2305346, 3458019, 6916038, 10374057, 20748114]

約数ペア:

[(1, 20748114), (2, 10374057), (3, 6916038), (6, 3458019), (9, 2305346), (18, 1152673), (19, 1092006), (31, 669294), (38, 546003), (57, 364002), (62, 334647), (93, 223098), (103, 201438), (114, 182001), (171, 121334), (186, 111549), (206, 100719), (279, 74366), (309, 67146), (342, 60667), (361, 57474), (558, 37183), (589, 35226), (618, 33573), (722, 28737), (927, 22382), (1083, 19158), (1178, 17613), (1767, 11742), (1854, 11191), (1957, 10602), (2166, 9579), (3193, 6498), (3249, 6386), (3534, 5871), (3914, 5301)]