21176280

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{997}}^1$

素因数の和:1073

約数の個数: 96

約数和(自身を含む): 70059600

約数和(自身を除く): 48883320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 59, 60, 72, 90, 118, 120, 177, 180, 236, 295, 354, 360, 472, 531, 590, 708, 885, 997, 1062, 1180, 1416, 1770, 1994, 2124, 2360, 2655, 2991, 3540, 3988, 4248, 4985, 5310, 5982, 7080, 7976, 8973, 9970, 10620, 11964, 14955, 17946, 19940, 21240, 23928, 29910, 35892, 39880, 44865, 58823, 59820, 71784, 89730, 117646, 119640, 176469, 179460, 235292, 294115, 352938, 358920, 470584, 529407, 588230, 705876, 882345, 1058814, 1176460, 1411752, 1764690, 2117628, 2352920, 2647035, 3529380, 4235256, 5294070, 7058760, 10588140, 21176280]

約数ペア:

[(1, 21176280), (2, 10588140), (3, 7058760), (4, 5294070), (5, 4235256), (6, 3529380), (8, 2647035), (9, 2352920), (10, 2117628), (12, 1764690), (15, 1411752), (18, 1176460), (20, 1058814), (24, 882345), (30, 705876), (36, 588230), (40, 529407), (45, 470584), (59, 358920), (60, 352938), (72, 294115), (90, 235292), (118, 179460), (120, 176469), (177, 119640), (180, 117646), (236, 89730), (295, 71784), (354, 59820), (360, 58823), (472, 44865), (531, 39880), (590, 35892), (708, 29910), (885, 23928), (997, 21240), (1062, 19940), (1180, 17946), (1416, 14955), (1770, 11964), (1994, 10620), (2124, 9970), (2360, 8973), (2655, 7976), (2991, 7080), (3540, 5982), (3988, 5310), (4248, 4985)]