19497764

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{383}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 40642560

約数和(自身を除く): 21144796

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 89, 143, 178, 286, 356, 383, 572, 766, 979, 1157, 1532, 1958, 2314, 3916, 4213, 4628, 4979, 8426, 9958, 12727, 16852, 19916, 25454, 34087, 50908, 54769, 68174, 109538, 136348, 219076, 374957, 443131, 749914, 886262, 1499828, 1772524, 4874441, 9748882, 19497764]

約数ペア:

[(1, 19497764), (2, 9748882), (4, 4874441), (11, 1772524), (13, 1499828), (22, 886262), (26, 749914), (44, 443131), (52, 374957), (89, 219076), (143, 136348), (178, 109538), (286, 68174), (356, 54769), (383, 50908), (572, 34087), (766, 25454), (979, 19916), (1157, 16852), (1532, 12727), (1958, 9958), (2314, 8426), (3916, 4979), (4213, 4628)]