217916644

素因数分解:

$2^2\times {\mathrm{11}}^4\times {\mathrm{61}}^2$

素因数の和:170

約数の個数: 45

約数和(自身を含む): 426476505

約数和(自身を除く): 208559861

約数列:

[1, 2, 4, 11, 22, 44, 61, 121, 122, 242, 244, 484, 671, 1331, 1342, 2662, 2684, 3721, 5324, 7381, 7442, 14641, 14762, 14884, 29282, 29524, 40931, 58564, 81191, 81862, 162382, 163724, 324764, 450241, 893101, 900482, 1786202, 1800964, 3572404, 4952651, 9905302, 19810604, 54479161, 108958322, 217916644]

約数ペア:

[(1, 217916644), (2, 108958322), (4, 54479161), (11, 19810604), (22, 9905302), (44, 4952651), (61, 3572404), (121, 1800964), (122, 1786202), (242, 900482), (244, 893101), (484, 450241), (671, 324764), (1331, 163724), (1342, 162382), (2662, 81862), (2684, 81191), (3721, 58564), (5324, 40931), (7381, 29524), (7442, 29282), (14641, 14884)]