19981624

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{839}}^1$

素因数の和:1087

約数の個数: 32

約数和(自身を含む): 40572000

約数和(自身を除く): 20590376

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 229, 458, 839, 916, 1678, 1832, 2977, 3356, 5954, 6712, 10907, 11908, 21814, 23816, 43628, 87256, 192131, 384262, 768524, 1537048, 2497703, 4995406, 9990812, 19981624]

約数ペア:

[(1, 19981624), (2, 9990812), (4, 4995406), (8, 2497703), (13, 1537048), (26, 768524), (52, 384262), (104, 192131), (229, 87256), (458, 43628), (839, 23816), (916, 21814), (1678, 11908), (1832, 10907), (2977, 6712), (3356, 5954)]