19891458

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^2\times {\mathrm{2089}}^1$

素因数の和:2143

約数の個数: 36

約数和(自身を含む): 45075030

約数和(自身を除く): 25183572

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 207, 414, 529, 1058, 1587, 2089, 3174, 4178, 4761, 6267, 9522, 12534, 18801, 37602, 48047, 96094, 144141, 288282, 432423, 864846, 1105081, 2210162, 3315243, 6630486, 9945729, 19891458]

約数ペア:

[(1, 19891458), (2, 9945729), (3, 6630486), (6, 3315243), (9, 2210162), (18, 1105081), (23, 864846), (46, 432423), (69, 288282), (138, 144141), (207, 96094), (414, 48047), (529, 37602), (1058, 18801), (1587, 12534), (2089, 9522), (3174, 6267), (4178, 4761)]