19490704

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{547}}^1$

素因数の和:703

約数の個数: 40

約数和(自身を含む): 40363488

約数和(自身を除く): 20872784

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 131, 136, 262, 272, 524, 547, 1048, 1094, 2096, 2188, 2227, 4376, 4454, 8752, 8908, 9299, 17816, 18598, 35632, 37196, 71657, 74392, 143314, 148784, 286628, 573256, 1146512, 1218169, 2436338, 4872676, 9745352, 19490704]

約数ペア:

[(1, 19490704), (2, 9745352), (4, 4872676), (8, 2436338), (16, 1218169), (17, 1146512), (34, 573256), (68, 286628), (131, 148784), (136, 143314), (262, 74392), (272, 71657), (524, 37196), (547, 35632), (1048, 18598), (1094, 17816), (2096, 9299), (2188, 8908), (2227, 8752), (4376, 4454)]