19483984

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{331}}^1$

素因数の和:635

約数の個数: 40

約数和(自身を含む): 40920992

約数和(自身を除く): 21437008

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 283, 331, 566, 662, 1132, 1324, 2264, 2648, 3679, 4303, 4528, 5296, 7358, 8606, 14716, 17212, 29432, 34424, 58864, 68848, 93673, 187346, 374692, 749384, 1217749, 1498768, 2435498, 4870996, 9741992, 19483984]

約数ペア:

[(1, 19483984), (2, 9741992), (4, 4870996), (8, 2435498), (13, 1498768), (16, 1217749), (26, 749384), (52, 374692), (104, 187346), (208, 93673), (283, 68848), (331, 58864), (566, 34424), (662, 29432), (1132, 17212), (1324, 14716), (2264, 8606), (2648, 7358), (3679, 5296), (4303, 4528)]