18821646

素因数分解:

$2^1\times 3^4\times {\mathrm{223}}^1\times {\mathrm{521}}^1$

素因数の和:758

約数の個数: 40

約数和(自身を含む): 42444864

約数和(自身を除く): 23623218

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 223, 446, 521, 669, 1042, 1338, 1563, 2007, 3126, 4014, 4689, 6021, 9378, 12042, 14067, 18063, 28134, 36126, 42201, 84402, 116183, 232366, 348549, 697098, 1045647, 2091294, 3136941, 6273882, 9410823, 18821646]

約数ペア:

[(1, 18821646), (2, 9410823), (3, 6273882), (6, 3136941), (9, 2091294), (18, 1045647), (27, 697098), (54, 348549), (81, 232366), (162, 116183), (223, 84402), (446, 42201), (521, 36126), (669, 28134), (1042, 18063), (1338, 14067), (1563, 12042), (2007, 9378), (3126, 6021), (4014, 4689)]