201811743

素因数分解:

$3^5\times 7^2\times {\mathrm{17}}^1\times {\mathrm{997}}^1$

素因数の和:1043

約数の個数: 72

約数和(自身を含む): 372717072

約数和(自身を除く): 170905329

約数列:

[1, 3, 7, 9, 17, 21, 27, 49, 51, 63, 81, 119, 147, 153, 189, 243, 357, 441, 459, 567, 833, 997, 1071, 1323, 1377, 1701, 2499, 2991, 3213, 3969, 4131, 6979, 7497, 8973, 9639, 11907, 16949, 20937, 22491, 26919, 28917, 48853, 50847, 62811, 67473, 80757, 118643, 146559, 152541, 188433, 202419, 242271, 355929, 439677, 457623, 565299, 830501, 1067787, 1319031, 1372869, 1695897, 2491503, 3203361, 3957093, 4118607, 7474509, 9610083, 11871279, 22423527, 28830249, 67270581, 201811743]

約数ペア:

[(1, 201811743), (3, 67270581), (7, 28830249), (9, 22423527), (17, 11871279), (21, 9610083), (27, 7474509), (49, 4118607), (51, 3957093), (63, 3203361), (81, 2491503), (119, 1695897), (147, 1372869), (153, 1319031), (189, 1067787), (243, 830501), (357, 565299), (441, 457623), (459, 439677), (567, 355929), (833, 242271), (997, 202419), (1071, 188433), (1323, 152541), (1377, 146559), (1701, 118643), (2499, 80757), (2991, 67473), (3213, 62811), (3969, 50847), (4131, 48853), (6979, 28917), (7497, 26919), (8973, 22491), (9639, 20937), (11907, 16949)]