21586635

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{431}}^1$

素因数の和:505

約数の個数: 64

約数和(自身を含む): 44789760

約数和(自身を除く): 23203125

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 53, 63, 105, 135, 159, 189, 265, 315, 371, 431, 477, 795, 945, 1113, 1293, 1431, 1855, 2155, 2385, 3017, 3339, 3879, 5565, 6465, 7155, 9051, 10017, 11637, 15085, 16695, 19395, 22843, 27153, 45255, 50085, 58185, 68529, 81459, 114215, 135765, 159901, 205587, 342645, 407295, 479703, 616761, 799505, 1027935, 1439109, 2398515, 3083805, 4317327, 7195545, 21586635]

約数ペア:

[(1, 21586635), (3, 7195545), (5, 4317327), (7, 3083805), (9, 2398515), (15, 1439109), (21, 1027935), (27, 799505), (35, 616761), (45, 479703), (53, 407295), (63, 342645), (105, 205587), (135, 159901), (159, 135765), (189, 114215), (265, 81459), (315, 68529), (371, 58185), (431, 50085), (477, 45255), (795, 27153), (945, 22843), (1113, 19395), (1293, 16695), (1431, 15085), (1855, 11637), (2155, 10017), (2385, 9051), (3017, 7155), (3339, 6465), (3879, 5565)]