21955780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{269}}^1$

素因数の和:349

約数の個数: 96

約数和(自身を含む): 58786560

約数和(自身を除く): 36830780

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 53, 55, 70, 77, 106, 110, 140, 154, 212, 220, 265, 269, 308, 371, 385, 530, 538, 583, 742, 770, 1060, 1076, 1166, 1345, 1484, 1540, 1855, 1883, 2332, 2690, 2915, 2959, 3710, 3766, 4081, 5380, 5830, 5918, 7420, 7532, 8162, 9415, 11660, 11836, 14257, 14795, 16324, 18830, 20405, 20713, 28514, 29590, 37660, 40810, 41426, 57028, 59180, 71285, 81620, 82852, 99799, 103565, 142570, 156827, 199598, 207130, 285140, 313654, 399196, 414260, 498995, 627308, 784135, 997990, 1097789, 1568270, 1995980, 2195578, 3136540, 4391156, 5488945, 10977890, 21955780]

約数ペア:

[(1, 21955780), (2, 10977890), (4, 5488945), (5, 4391156), (7, 3136540), (10, 2195578), (11, 1995980), (14, 1568270), (20, 1097789), (22, 997990), (28, 784135), (35, 627308), (44, 498995), (53, 414260), (55, 399196), (70, 313654), (77, 285140), (106, 207130), (110, 199598), (140, 156827), (154, 142570), (212, 103565), (220, 99799), (265, 82852), (269, 81620), (308, 71285), (371, 59180), (385, 57028), (530, 41426), (538, 40810), (583, 37660), (742, 29590), (770, 28514), (1060, 20713), (1076, 20405), (1166, 18830), (1345, 16324), (1484, 14795), (1540, 14257), (1855, 11836), (1883, 11660), (2332, 9415), (2690, 8162), (2915, 7532), (2959, 7420), (3710, 5918), (3766, 5830), (4081, 5380)]