18754938

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:148

約数の個数: 96

約数和(自身を含む): 46425600

約数和(自身を除く): 27670662

約数列:

[1, 2, 3, 6, 9, 18, 19, 29, 31, 38, 57, 58, 61, 62, 87, 93, 114, 122, 171, 174, 183, 186, 261, 279, 342, 366, 522, 549, 551, 558, 589, 899, 1098, 1102, 1159, 1178, 1653, 1767, 1769, 1798, 1891, 2318, 2697, 3306, 3477, 3534, 3538, 3782, 4959, 5301, 5307, 5394, 5673, 6954, 8091, 9918, 10431, 10602, 10614, 11346, 15921, 16182, 17019, 17081, 20862, 31842, 33611, 34038, 34162, 35929, 51243, 54839, 67222, 71858, 100833, 102486, 107787, 109678, 153729, 164517, 201666, 215574, 302499, 307458, 323361, 329034, 493551, 604998, 646722, 987102, 1041941, 2083882, 3125823, 6251646, 9377469, 18754938]

約数ペア:

[(1, 18754938), (2, 9377469), (3, 6251646), (6, 3125823), (9, 2083882), (18, 1041941), (19, 987102), (29, 646722), (31, 604998), (38, 493551), (57, 329034), (58, 323361), (61, 307458), (62, 302499), (87, 215574), (93, 201666), (114, 164517), (122, 153729), (171, 109678), (174, 107787), (183, 102486), (186, 100833), (261, 71858), (279, 67222), (342, 54839), (366, 51243), (522, 35929), (549, 34162), (551, 34038), (558, 33611), (589, 31842), (899, 20862), (1098, 17081), (1102, 17019), (1159, 16182), (1178, 15921), (1653, 11346), (1767, 10614), (1769, 10602), (1798, 10431), (1891, 9918), (2318, 8091), (2697, 6954), (3306, 5673), (3477, 5394), (3534, 5307), (3538, 5301), (3782, 4959)]