21000905719911

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{3023}}^1\times {\mathrm{106219}}^1$

素因数の和:109317

約数の個数: 72

約数和(自身を含む): 33622902593280

約数和(自身を除く): 12621996873369

約数列:

[1, 3, 9, 13, 39, 43, 117, 129, 169, 387, 507, 559, 1521, 1677, 3023, 5031, 7267, 9069, 21801, 27207, 39299, 65403, 106219, 117897, 129989, 318657, 353691, 389967, 510887, 955971, 1169901, 1380847, 1532661, 1689857, 4142541, 4567417, 4597983, 5069571, 12427623, 13702251, 15208713, 17951011, 21968141, 41106753, 53853033, 59376421, 65904423, 161559099, 178129263, 197713269, 321100037, 534387789, 771893473, 963300111, 2315680419, 2889900333, 4174300481, 6947041257, 12522901443, 13807301591, 37568704329, 41421904773, 54265906253, 124265714319, 162797718759, 179494920683, 488393156277, 538484762049, 1615454286147, 2333433968879, 7000301906637, 21000905719911]

約数ペア:

[(1, 21000905719911), (3, 7000301906637), (9, 2333433968879), (13, 1615454286147), (39, 538484762049), (43, 488393156277), (117, 179494920683), (129, 162797718759), (169, 124265714319), (387, 54265906253), (507, 41421904773), (559, 37568704329), (1521, 13807301591), (1677, 12522901443), (3023, 6947041257), (5031, 4174300481), (7267, 2889900333), (9069, 2315680419), (21801, 963300111), (27207, 771893473), (39299, 534387789), (65403, 321100037), (106219, 197713269), (117897, 178129263), (129989, 161559099), (318657, 65904423), (353691, 59376421), (389967, 53853033), (510887, 41106753), (955971, 21968141), (1169901, 17951011), (1380847, 15208713), (1532661, 13702251), (1689857, 12427623), (4142541, 5069571), (4567417, 4597983)]