19228185

素因数分解:

$3^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{241}}^1$

素因数の和:455

約数の個数: 40

約数和(自身を含む): 34787016

約数和(自身を除く): 15558831

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 197, 241, 405, 591, 723, 985, 1205, 1773, 2169, 2955, 3615, 5319, 6507, 8865, 10845, 15957, 19521, 26595, 32535, 47477, 79785, 97605, 142431, 237385, 427293, 712155, 1281879, 2136465, 3845637, 6409395, 19228185]

約数ペア:

[(1, 19228185), (3, 6409395), (5, 3845637), (9, 2136465), (15, 1281879), (27, 712155), (45, 427293), (81, 237385), (135, 142431), (197, 97605), (241, 79785), (405, 47477), (591, 32535), (723, 26595), (985, 19521), (1205, 15957), (1773, 10845), (2169, 8865), (2955, 6507), (3615, 5319)]