19978164

素因数分解:

$2^2\times 3^4\times {\mathrm{197}}^1\times {\mathrm{313}}^1$

素因数の和:526

約数の個数: 60

約数和(自身を含む): 52659684

約数和(自身を除く): 32681520

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 197, 313, 324, 394, 591, 626, 788, 939, 1182, 1252, 1773, 1878, 2364, 2817, 3546, 3756, 5319, 5634, 7092, 8451, 10638, 11268, 15957, 16902, 21276, 25353, 31914, 33804, 50706, 61661, 63828, 101412, 123322, 184983, 246644, 369966, 554949, 739932, 1109898, 1664847, 2219796, 3329694, 4994541, 6659388, 9989082, 19978164]

約数ペア:

[(1, 19978164), (2, 9989082), (3, 6659388), (4, 4994541), (6, 3329694), (9, 2219796), (12, 1664847), (18, 1109898), (27, 739932), (36, 554949), (54, 369966), (81, 246644), (108, 184983), (162, 123322), (197, 101412), (313, 63828), (324, 61661), (394, 50706), (591, 33804), (626, 31914), (788, 25353), (939, 21276), (1182, 16902), (1252, 15957), (1773, 11268), (1878, 10638), (2364, 8451), (2817, 7092), (3546, 5634), (3756, 5319)]