20155761381

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{49697}}^1$

素因数の和:49834

約数の個数: 48

約数和(自身を含む): 32633694720

約数和(自身を除く): 12477933339

約数列:

[1, 3, 7, 21, 31, 49, 89, 93, 147, 217, 267, 623, 651, 1519, 1869, 2759, 4361, 4557, 8277, 13083, 19313, 49697, 57939, 135191, 149091, 347879, 405573, 1043637, 1540607, 2435153, 4423033, 4621821, 7305459, 10784249, 13269099, 30961231, 32352747, 75489743, 92883693, 137114023, 216728617, 226469229, 411342069, 650185851, 959798161, 2879394483, 6718587127, 20155761381]

約数ペア:

[(1, 20155761381), (3, 6718587127), (7, 2879394483), (21, 959798161), (31, 650185851), (49, 411342069), (89, 226469229), (93, 216728617), (147, 137114023), (217, 92883693), (267, 75489743), (623, 32352747), (651, 30961231), (1519, 13269099), (1869, 10784249), (2759, 7305459), (4361, 4621821), (4557, 4423033), (8277, 2435153), (13083, 1540607), (19313, 1043637), (49697, 405573), (57939, 347879), (135191, 149091)]