19881342

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{223}}^1$

素因数の和:374

約数の個数: 64

約数和(自身を含む): 48168960

約数和(自身を除く): 28287618

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 117, 127, 223, 234, 254, 351, 381, 446, 669, 702, 762, 1143, 1338, 1651, 2007, 2286, 2899, 3302, 3429, 4014, 4953, 5798, 6021, 6858, 8697, 9906, 12042, 14859, 17394, 26091, 28321, 29718, 44577, 52182, 56642, 78273, 84963, 89154, 156546, 169926, 254889, 368173, 509778, 736346, 764667, 1104519, 1529334, 2209038, 3313557, 6627114, 9940671, 19881342]

約数ペア:

[(1, 19881342), (2, 9940671), (3, 6627114), (6, 3313557), (9, 2209038), (13, 1529334), (18, 1104519), (26, 764667), (27, 736346), (39, 509778), (54, 368173), (78, 254889), (117, 169926), (127, 156546), (223, 89154), (234, 84963), (254, 78273), (351, 56642), (381, 52182), (446, 44577), (669, 29718), (702, 28321), (762, 26091), (1143, 17394), (1338, 14859), (1651, 12042), (2007, 9906), (2286, 8697), (2899, 6858), (3302, 6021), (3429, 5798), (4014, 4953)]