18313701

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 30643200

約数和(自身を除く): 12329499

約数列:

[1, 3, 7, 19, 21, 49, 57, 79, 83, 133, 147, 237, 249, 399, 553, 581, 931, 1501, 1577, 1659, 1743, 2793, 3871, 4067, 4503, 4731, 6557, 10507, 11039, 11613, 12201, 19671, 31521, 33117, 45899, 73549, 77273, 124583, 137697, 220647, 231819, 321293, 373749, 872081, 963879, 2616243, 6104567, 18313701]

約数ペア:

[(1, 18313701), (3, 6104567), (7, 2616243), (19, 963879), (21, 872081), (49, 373749), (57, 321293), (79, 231819), (83, 220647), (133, 137697), (147, 124583), (237, 77273), (249, 73549), (399, 45899), (553, 33117), (581, 31521), (931, 19671), (1501, 12201), (1577, 11613), (1659, 11039), (1743, 10507), (2793, 6557), (3871, 4731), (4067, 4503)]