28229649

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{509}}^1$

素因数の和:677

約数の個数: 32

約数和(自身を含む): 45696000

約数和(自身を除く): 17466351

約数列:

[1, 3, 7, 19, 21, 57, 133, 139, 399, 417, 509, 973, 1527, 2641, 2919, 3563, 7923, 9671, 10689, 18487, 29013, 55461, 67697, 70751, 203091, 212253, 495257, 1344269, 1485771, 4032807, 9409883, 28229649]

約数ペア:

[(1, 28229649), (3, 9409883), (7, 4032807), (19, 1485771), (21, 1344269), (57, 495257), (133, 212253), (139, 203091), (399, 70751), (417, 67697), (509, 55461), (973, 29013), (1527, 18487), (2641, 10689), (2919, 9671), (3563, 7923)]