18128715

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{281}}^1$

素因数の和:340

約数の個数: 64

約数和(自身を含む): 35085312

約数和(自身を除く): 16956597

約数列:

[1, 3, 5, 11, 15, 17, 23, 33, 51, 55, 69, 85, 115, 165, 187, 253, 255, 281, 345, 391, 561, 759, 843, 935, 1173, 1265, 1405, 1955, 2805, 3091, 3795, 4215, 4301, 4777, 5865, 6463, 9273, 12903, 14331, 15455, 19389, 21505, 23885, 32315, 46365, 52547, 64515, 71093, 71655, 96945, 109871, 157641, 213279, 262735, 329613, 355465, 549355, 788205, 1066395, 1208581, 1648065, 3625743, 6042905, 18128715]

約数ペア:

[(1, 18128715), (3, 6042905), (5, 3625743), (11, 1648065), (15, 1208581), (17, 1066395), (23, 788205), (33, 549355), (51, 355465), (55, 329613), (69, 262735), (85, 213279), (115, 157641), (165, 109871), (187, 96945), (253, 71655), (255, 71093), (281, 64515), (345, 52547), (391, 46365), (561, 32315), (759, 23885), (843, 21505), (935, 19389), (1173, 15455), (1265, 14331), (1405, 12903), (1955, 9273), (2805, 6463), (3091, 5865), (3795, 4777), (4215, 4301)]