19481456

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{1069}}^1$

素因数の和:1161

約数の個数: 40

約数和(自身を含む): 40600080

約数和(自身を除く): 21118624

約数列:

[1, 2, 4, 8, 16, 17, 34, 67, 68, 134, 136, 268, 272, 536, 1069, 1072, 1139, 2138, 2278, 4276, 4556, 8552, 9112, 17104, 18173, 18224, 36346, 71623, 72692, 143246, 145384, 286492, 290768, 572984, 1145968, 1217591, 2435182, 4870364, 9740728, 19481456]

約数ペア:

[(1, 19481456), (2, 9740728), (4, 4870364), (8, 2435182), (16, 1217591), (17, 1145968), (34, 572984), (67, 290768), (68, 286492), (134, 145384), (136, 143246), (268, 72692), (272, 71623), (536, 36346), (1069, 18224), (1072, 18173), (1139, 17104), (2138, 9112), (2278, 8552), (4276, 4556)]