20441967

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{563}}^1$

素因数の和:612

約数の個数: 48

約数和(自身を含む): 36005760

約数和(自身を除く): 15563793

約数列:

[1, 3, 7, 13, 19, 21, 39, 49, 57, 91, 133, 147, 247, 273, 399, 563, 637, 741, 931, 1689, 1729, 1911, 2793, 3941, 5187, 7319, 10697, 11823, 12103, 21957, 27587, 32091, 36309, 51233, 74879, 82761, 139061, 153699, 224637, 358631, 417183, 524153, 973427, 1075893, 1572459, 2920281, 6813989, 20441967]

約数ペア:

[(1, 20441967), (3, 6813989), (7, 2920281), (13, 1572459), (19, 1075893), (21, 973427), (39, 524153), (49, 417183), (57, 358631), (91, 224637), (133, 153699), (147, 139061), (247, 82761), (273, 74879), (399, 51233), (563, 36309), (637, 32091), (741, 27587), (931, 21957), (1689, 12103), (1729, 11823), (1911, 10697), (2793, 7319), (3941, 5187)]