221661648

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{118409}}^1$

素因数の和:118436

約数の個数: 60

約数和(自身を含む): 668069220

約数和(自身を除く): 446407572

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 208, 234, 312, 468, 624, 936, 1872, 118409, 236818, 355227, 473636, 710454, 947272, 1065681, 1420908, 1539317, 1894544, 2131362, 2841816, 3078634, 4262724, 4617951, 5683632, 6157268, 8525448, 9235902, 12314536, 13853853, 17050896, 18471804, 24629072, 27707706, 36943608, 55415412, 73887216, 110830824, 221661648]

約数ペア:

[(1, 221661648), (2, 110830824), (3, 73887216), (4, 55415412), (6, 36943608), (8, 27707706), (9, 24629072), (12, 18471804), (13, 17050896), (16, 13853853), (18, 12314536), (24, 9235902), (26, 8525448), (36, 6157268), (39, 5683632), (48, 4617951), (52, 4262724), (72, 3078634), (78, 2841816), (104, 2131362), (117, 1894544), (144, 1539317), (156, 1420908), (208, 1065681), (234, 947272), (312, 710454), (468, 473636), (624, 355227), (936, 236818), (1872, 118409)]