19646836

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{331}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 40158720

約数和(自身を除く): 20511884

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 71, 76, 142, 209, 284, 331, 418, 662, 781, 836, 1324, 1349, 1562, 2698, 3124, 3641, 5396, 6289, 7282, 12578, 14564, 14839, 23501, 25156, 29678, 47002, 59356, 69179, 94004, 138358, 258511, 276716, 446519, 517022, 893038, 1034044, 1786076, 4911709, 9823418, 19646836]

約数ペア:

[(1, 19646836), (2, 9823418), (4, 4911709), (11, 1786076), (19, 1034044), (22, 893038), (38, 517022), (44, 446519), (71, 276716), (76, 258511), (142, 138358), (209, 94004), (284, 69179), (331, 59356), (418, 47002), (662, 29678), (781, 25156), (836, 23501), (1324, 14839), (1349, 14564), (1562, 12578), (2698, 7282), (3124, 6289), (3641, 5396)]