18872958

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{331}}^1$

素因数の和:409

約数の個数: 64

約数和(自身を含む): 44174592

約数和(自身を除く): 25301634

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 43, 51, 78, 86, 102, 129, 221, 258, 331, 442, 559, 662, 663, 731, 993, 1118, 1326, 1462, 1677, 1986, 2193, 3354, 4303, 4386, 5627, 8606, 9503, 11254, 12909, 14233, 16881, 19006, 25818, 28466, 28509, 33762, 42699, 57018, 73151, 85398, 146302, 185029, 219453, 241961, 370058, 438906, 483922, 555087, 725883, 1110174, 1451766, 3145493, 6290986, 9436479, 18872958]

約数ペア:

[(1, 18872958), (2, 9436479), (3, 6290986), (6, 3145493), (13, 1451766), (17, 1110174), (26, 725883), (34, 555087), (39, 483922), (43, 438906), (51, 370058), (78, 241961), (86, 219453), (102, 185029), (129, 146302), (221, 85398), (258, 73151), (331, 57018), (442, 42699), (559, 33762), (662, 28509), (663, 28466), (731, 25818), (993, 19006), (1118, 16881), (1326, 14233), (1462, 12909), (1677, 11254), (1986, 9503), (2193, 8606), (3354, 5627), (4303, 4386)]