21780072

素因数分解:

$2^3\times 3^2\times {\mathrm{113}}^1\times {\mathrm{2677}}^1$

素因数の和:2802

約数の個数: 48

約数和(自身を含む): 59531940

約数和(自身を除く): 37751868

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 113, 226, 339, 452, 678, 904, 1017, 1356, 2034, 2677, 2712, 4068, 5354, 8031, 8136, 10708, 16062, 21416, 24093, 32124, 48186, 64248, 96372, 192744, 302501, 605002, 907503, 1210004, 1815006, 2420008, 2722509, 3630012, 5445018, 7260024, 10890036, 21780072]

約数ペア:

[(1, 21780072), (2, 10890036), (3, 7260024), (4, 5445018), (6, 3630012), (8, 2722509), (9, 2420008), (12, 1815006), (18, 1210004), (24, 907503), (36, 605002), (72, 302501), (113, 192744), (226, 96372), (339, 64248), (452, 48186), (678, 32124), (904, 24093), (1017, 21416), (1356, 16062), (2034, 10708), (2677, 8136), (2712, 8031), (4068, 5354)]