18149985

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{367}}^1$

素因数の和:542

約数の個数: 48

約数和(自身を含む): 36281856

約数和(自身を除く): 18131871

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 157, 315, 367, 471, 785, 1099, 1101, 1413, 1835, 2355, 2569, 3297, 3303, 5495, 5505, 7065, 7707, 9891, 12845, 16485, 16515, 23121, 38535, 49455, 57619, 115605, 172857, 288095, 403333, 518571, 864285, 1209999, 2016665, 2592855, 3629997, 6049995, 18149985]

約数ペア:

[(1, 18149985), (3, 6049995), (5, 3629997), (7, 2592855), (9, 2016665), (15, 1209999), (21, 864285), (35, 518571), (45, 403333), (63, 288095), (105, 172857), (157, 115605), (315, 57619), (367, 49455), (471, 38535), (785, 23121), (1099, 16515), (1101, 16485), (1413, 12845), (1835, 9891), (2355, 7707), (2569, 7065), (3297, 5505), (3303, 5495)]