18891816

素因数分解:

$2^3\times 3^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{263}}^1$

素因数の和:386

約数の個数: 64

約数和(自身を含む): 49230720

約数和(自身を除く): 30338904

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 41, 73, 82, 123, 146, 164, 219, 246, 263, 292, 328, 438, 492, 526, 584, 789, 876, 984, 1052, 1578, 1752, 2104, 2993, 3156, 5986, 6312, 8979, 10783, 11972, 17958, 19199, 21566, 23944, 32349, 35916, 38398, 43132, 57597, 64698, 71832, 76796, 86264, 115194, 129396, 153592, 230388, 258792, 460776, 787159, 1574318, 2361477, 3148636, 4722954, 6297272, 9445908, 18891816]

約数ペア:

[(1, 18891816), (2, 9445908), (3, 6297272), (4, 4722954), (6, 3148636), (8, 2361477), (12, 1574318), (24, 787159), (41, 460776), (73, 258792), (82, 230388), (123, 153592), (146, 129396), (164, 115194), (219, 86264), (246, 76796), (263, 71832), (292, 64698), (328, 57597), (438, 43132), (492, 38398), (526, 35916), (584, 32349), (789, 23944), (876, 21566), (984, 19199), (1052, 17958), (1578, 11972), (1752, 10783), (2104, 8979), (2993, 6312), (3156, 5986)]