201621996

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{1049}}^1$

素因数の和:1359

約数の個数: 72

約数和(自身を含む): 538902000

約数和(自身を除く): 337280004

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 281, 342, 562, 684, 843, 1049, 1124, 1686, 2098, 2529, 3147, 3372, 4196, 5058, 5339, 6294, 9441, 10116, 10678, 12588, 16017, 18882, 19931, 21356, 32034, 37764, 39862, 48051, 59793, 64068, 79724, 96102, 119586, 179379, 192204, 239172, 294769, 358758, 589538, 717516, 884307, 1179076, 1768614, 2652921, 3537228, 5305842, 5600611, 10611684, 11201222, 16801833, 22402444, 33603666, 50405499, 67207332, 100810998, 201621996]

約数ペア:

[(1, 201621996), (2, 100810998), (3, 67207332), (4, 50405499), (6, 33603666), (9, 22402444), (12, 16801833), (18, 11201222), (19, 10611684), (36, 5600611), (38, 5305842), (57, 3537228), (76, 2652921), (114, 1768614), (171, 1179076), (228, 884307), (281, 717516), (342, 589538), (562, 358758), (684, 294769), (843, 239172), (1049, 192204), (1124, 179379), (1686, 119586), (2098, 96102), (2529, 79724), (3147, 64068), (3372, 59793), (4196, 48051), (5058, 39862), (5339, 37764), (6294, 32034), (9441, 21356), (10116, 19931), (10678, 18882), (12588, 16017)]