18912712

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{313}}^1$

素因数の和:422

約数の個数: 64

約数和(自身を含む): 44311680

約数和(自身を除く): 25398968

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 83, 91, 104, 166, 182, 313, 332, 364, 581, 626, 664, 728, 1079, 1162, 1252, 2158, 2191, 2324, 2504, 4069, 4316, 4382, 4648, 7553, 8138, 8632, 8764, 15106, 16276, 17528, 25979, 28483, 30212, 32552, 51958, 56966, 60424, 103916, 113932, 181853, 207832, 227864, 337727, 363706, 675454, 727412, 1350908, 1454824, 2364089, 2701816, 4728178, 9456356, 18912712]

約数ペア:

[(1, 18912712), (2, 9456356), (4, 4728178), (7, 2701816), (8, 2364089), (13, 1454824), (14, 1350908), (26, 727412), (28, 675454), (52, 363706), (56, 337727), (83, 227864), (91, 207832), (104, 181853), (166, 113932), (182, 103916), (313, 60424), (332, 56966), (364, 51958), (581, 32552), (626, 30212), (664, 28483), (728, 25979), (1079, 17528), (1162, 16276), (1252, 15106), (2158, 8764), (2191, 8632), (2324, 8138), (2504, 7553), (4069, 4648), (4316, 4382)]