20187942327

素因数分解:

$3^2\times 7^2\times {\mathrm{45777647}}^1$

素因数の和:45777667

約数の個数: 18

約数和(自身を含む): 33921237168

約数和(自身を除く): 13733294841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 45777647, 137332941, 320443529, 411998823, 961330587, 2243104703, 2883991761, 6729314109, 20187942327]

約数ペア:

[(1, 20187942327), (3, 6729314109), (7, 2883991761), (9, 2243104703), (21, 961330587), (49, 411998823), (63, 320443529), (147, 137332941), (441, 45777647)]