19628812

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:215

約数の個数: 72

約数和(自身を含む): 43609104

約数和(自身を除く): 23980292

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 43, 49, 68, 86, 98, 119, 137, 172, 196, 238, 274, 301, 476, 548, 602, 731, 833, 959, 1204, 1462, 1666, 1918, 2107, 2329, 2924, 3332, 3836, 4214, 4658, 5117, 5891, 6713, 8428, 9316, 10234, 11782, 13426, 16303, 20468, 23564, 26852, 32606, 35819, 41237, 65212, 71638, 82474, 100147, 114121, 143276, 164948, 200294, 228242, 288659, 400588, 456484, 577318, 701029, 1154636, 1402058, 2804116, 4907203, 9814406, 19628812]

約数ペア:

[(1, 19628812), (2, 9814406), (4, 4907203), (7, 2804116), (14, 1402058), (17, 1154636), (28, 701029), (34, 577318), (43, 456484), (49, 400588), (68, 288659), (86, 228242), (98, 200294), (119, 164948), (137, 143276), (172, 114121), (196, 100147), (238, 82474), (274, 71638), (301, 65212), (476, 41237), (548, 35819), (602, 32606), (731, 26852), (833, 23564), (959, 20468), (1204, 16303), (1462, 13426), (1666, 11782), (1918, 10234), (2107, 9316), (2329, 8428), (2924, 6713), (3332, 5891), (3836, 5117), (4214, 4658)]