21516588

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{379}}^1$

素因数の和:491

約数の個数: 72

約数和(自身を含む): 58094400

約数和(自身を除く): 36577812

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 83, 114, 166, 171, 228, 249, 332, 342, 379, 498, 684, 747, 758, 996, 1137, 1494, 1516, 1577, 2274, 2988, 3154, 3411, 4548, 4731, 6308, 6822, 7201, 9462, 13644, 14193, 14402, 18924, 21603, 28386, 28804, 31457, 43206, 56772, 62914, 64809, 86412, 94371, 125828, 129618, 188742, 259236, 283113, 377484, 566226, 597683, 1132452, 1195366, 1793049, 2390732, 3586098, 5379147, 7172196, 10758294, 21516588]

約数ペア:

[(1, 21516588), (2, 10758294), (3, 7172196), (4, 5379147), (6, 3586098), (9, 2390732), (12, 1793049), (18, 1195366), (19, 1132452), (36, 597683), (38, 566226), (57, 377484), (76, 283113), (83, 259236), (114, 188742), (166, 129618), (171, 125828), (228, 94371), (249, 86412), (332, 64809), (342, 62914), (379, 56772), (498, 43206), (684, 31457), (747, 28804), (758, 28386), (996, 21603), (1137, 18924), (1494, 14402), (1516, 14193), (1577, 13644), (2274, 9462), (2988, 7201), (3154, 6822), (3411, 6308), (4548, 4731)]