21984390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1783}}^1$

素因数の和:1933

約数の個数: 48

約数和(自身を含む): 57608928

約数和(自身を除く): 35624538

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 137, 274, 411, 685, 822, 1233, 1370, 1783, 2055, 2466, 3566, 4110, 5349, 6165, 8915, 10698, 12330, 16047, 17830, 26745, 32094, 53490, 80235, 160470, 244271, 488542, 732813, 1221355, 1465626, 2198439, 2442710, 3664065, 4396878, 7328130, 10992195, 21984390]

約数ペア:

[(1, 21984390), (2, 10992195), (3, 7328130), (5, 4396878), (6, 3664065), (9, 2442710), (10, 2198439), (15, 1465626), (18, 1221355), (30, 732813), (45, 488542), (90, 244271), (137, 160470), (274, 80235), (411, 53490), (685, 32094), (822, 26745), (1233, 17830), (1370, 16047), (1783, 12330), (2055, 10698), (2466, 8915), (3566, 6165), (4110, 5349)]