21898530

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:256

約数の個数: 96

約数和(自身を含む): 60652800

約数和(自身を除く): 38754270

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 69, 71, 90, 115, 138, 142, 149, 207, 213, 230, 298, 345, 355, 414, 426, 447, 639, 690, 710, 745, 894, 1035, 1065, 1278, 1341, 1490, 1633, 2070, 2130, 2235, 2682, 3195, 3266, 3427, 4470, 4899, 6390, 6705, 6854, 8165, 9798, 10281, 10579, 13410, 14697, 16330, 17135, 20562, 21158, 24495, 29394, 30843, 31737, 34270, 48990, 51405, 52895, 61686, 63474, 73485, 95211, 102810, 105790, 146970, 154215, 158685, 190422, 243317, 308430, 317370, 476055, 486634, 729951, 952110, 1216585, 1459902, 2189853, 2433170, 3649755, 4379706, 7299510, 10949265, 21898530]

約数ペア:

[(1, 21898530), (2, 10949265), (3, 7299510), (5, 4379706), (6, 3649755), (9, 2433170), (10, 2189853), (15, 1459902), (18, 1216585), (23, 952110), (30, 729951), (45, 486634), (46, 476055), (69, 317370), (71, 308430), (90, 243317), (115, 190422), (138, 158685), (142, 154215), (149, 146970), (207, 105790), (213, 102810), (230, 95211), (298, 73485), (345, 63474), (355, 61686), (414, 52895), (426, 51405), (447, 48990), (639, 34270), (690, 31737), (710, 30843), (745, 29394), (894, 24495), (1035, 21158), (1065, 20562), (1278, 17135), (1341, 16330), (1490, 14697), (1633, 13410), (2070, 10579), (2130, 10281), (2235, 9798), (2682, 8165), (3195, 6854), (3266, 6705), (3427, 6390), (4470, 4899)]