19936213856

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{474491}}^1$

素因数の和:474615

約数の個数: 48

約数和(自身を含む): 42687198288

約数和(自身を除く): 22750984432

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 101, 104, 202, 208, 404, 416, 808, 1313, 1616, 2626, 3232, 5252, 10504, 21008, 42016, 474491, 948982, 1897964, 3795928, 6168383, 7591856, 12336766, 15183712, 24673532, 47923591, 49347064, 95847182, 98694128, 191694364, 197388256, 383388728, 623006683, 766777456, 1246013366, 1533554912, 2492026732, 4984053464, 9968106928, 19936213856]

約数ペア:

[(1, 19936213856), (2, 9968106928), (4, 4984053464), (8, 2492026732), (13, 1533554912), (16, 1246013366), (26, 766777456), (32, 623006683), (52, 383388728), (101, 197388256), (104, 191694364), (202, 98694128), (208, 95847182), (404, 49347064), (416, 47923591), (808, 24673532), (1313, 15183712), (1616, 12336766), (2626, 7591856), (3232, 6168383), (5252, 3795928), (10504, 1897964), (21008, 948982), (42016, 474491)]