21479082

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:215

約数の個数: 64

約数和(自身を含む): 47952000

約数和(自身を除く): 26472918

約数列:

[1, 2, 3, 6, 19, 29, 38, 57, 58, 73, 87, 89, 114, 146, 174, 178, 219, 267, 438, 534, 551, 1102, 1387, 1653, 1691, 2117, 2581, 2774, 3306, 3382, 4161, 4234, 5073, 5162, 6351, 6497, 7743, 8322, 10146, 12702, 12994, 15486, 19491, 38982, 40223, 49039, 80446, 98078, 120669, 123443, 147117, 188413, 241338, 246886, 294234, 370329, 376826, 565239, 740658, 1130478, 3579847, 7159694, 10739541, 21479082]

約数ペア:

[(1, 21479082), (2, 10739541), (3, 7159694), (6, 3579847), (19, 1130478), (29, 740658), (38, 565239), (57, 376826), (58, 370329), (73, 294234), (87, 246886), (89, 241338), (114, 188413), (146, 147117), (174, 123443), (178, 120669), (219, 98078), (267, 80446), (438, 49039), (534, 40223), (551, 38982), (1102, 19491), (1387, 15486), (1653, 12994), (1691, 12702), (2117, 10146), (2581, 8322), (2774, 7743), (3306, 6497), (3382, 6351), (4161, 5162), (4234, 5073)]