212901813

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{443}}^1\times {\mathrm{797}}^1$

素因数の和:1313

約数の個数: 24

約数和(自身を含む): 313211808

約数和(自身を除く): 100309995

約数列:

[1, 3, 9, 67, 201, 443, 603, 797, 1329, 2391, 3987, 7173, 29681, 53399, 89043, 160197, 267129, 353071, 480591, 1059213, 3177639, 23655757, 70967271, 212901813]

約数ペア:

[(1, 212901813), (3, 70967271), (9, 23655757), (67, 3177639), (201, 1059213), (443, 480591), (603, 353071), (797, 267129), (1329, 160197), (2391, 89043), (3987, 53399), (7173, 29681)]