27983018

素因数分解:

$2^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:259

約数の個数: 48

約数和(自身を含む): 51568128

約数和(自身を除く): 23585110

約数列:

[1, 2, 7, 14, 31, 49, 61, 62, 98, 122, 151, 217, 302, 427, 434, 854, 1057, 1519, 1891, 2114, 2989, 3038, 3782, 4681, 5978, 7399, 9211, 9362, 13237, 14798, 18422, 26474, 32767, 64477, 65534, 92659, 128954, 185318, 229369, 285541, 451339, 458738, 571082, 902678, 1998787, 3997574, 13991509, 27983018]

約数ペア:

[(1, 27983018), (2, 13991509), (7, 3997574), (14, 1998787), (31, 902678), (49, 571082), (61, 458738), (62, 451339), (98, 285541), (122, 229369), (151, 185318), (217, 128954), (302, 92659), (427, 65534), (434, 64477), (854, 32767), (1057, 26474), (1519, 18422), (1891, 14798), (2114, 13237), (2989, 9362), (3038, 9211), (3782, 7399), (4681, 5978)]