21129840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29347}}^1$

素因数の和:29366

約数の個数: 60

約数和(自身を含む): 70963464

約数和(自身を除く): 49833624

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 29347, 58694, 88041, 117388, 146735, 176082, 234776, 264123, 293470, 352164, 440205, 469552, 528246, 586940, 704328, 880410, 1056492, 1173880, 1320615, 1408656, 1760820, 2112984, 2347760, 2641230, 3521640, 4225968, 5282460, 7043280, 10564920, 21129840]

約数ペア:

[(1, 21129840), (2, 10564920), (3, 7043280), (4, 5282460), (5, 4225968), (6, 3521640), (8, 2641230), (9, 2347760), (10, 2112984), (12, 1760820), (15, 1408656), (16, 1320615), (18, 1173880), (20, 1056492), (24, 880410), (30, 704328), (36, 586940), (40, 528246), (45, 469552), (48, 440205), (60, 352164), (72, 293470), (80, 264123), (90, 234776), (120, 176082), (144, 146735), (180, 117388), (240, 88041), (360, 58694), (720, 29347)]