21598920

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{2857}}^1$

素因数の和:2884

約数の個数: 128

約数和(自身を含む): 82310400

約数和(自身を除く): 60711480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 2857, 3780, 5714, 7560, 8571, 11428, 14285, 17142, 19999, 22856, 25713, 28570, 34284, 39998, 42855, 51426, 57140, 59997, 68568, 77139, 79996, 85710, 99995, 102852, 114280, 119994, 128565, 154278, 159992, 171420, 179991, 199990, 205704, 239988, 257130, 299985, 308556, 342840, 359982, 385695, 399980, 479976, 514260, 539973, 599970, 617112, 719964, 771390, 799960, 899955, 1028520, 1079946, 1199940, 1439928, 1542780, 1799910, 2159892, 2399880, 2699865, 3085560, 3599820, 4319784, 5399730, 7199640, 10799460, 21598920]

約数ペア:

[(1, 21598920), (2, 10799460), (3, 7199640), (4, 5399730), (5, 4319784), (6, 3599820), (7, 3085560), (8, 2699865), (9, 2399880), (10, 2159892), (12, 1799910), (14, 1542780), (15, 1439928), (18, 1199940), (20, 1079946), (21, 1028520), (24, 899955), (27, 799960), (28, 771390), (30, 719964), (35, 617112), (36, 599970), (40, 539973), (42, 514260), (45, 479976), (54, 399980), (56, 385695), (60, 359982), (63, 342840), (70, 308556), (72, 299985), (84, 257130), (90, 239988), (105, 205704), (108, 199990), (120, 179991), (126, 171420), (135, 159992), (140, 154278), (168, 128565), (180, 119994), (189, 114280), (210, 102852), (216, 99995), (252, 85710), (270, 79996), (280, 77139), (315, 68568), (360, 59997), (378, 57140), (420, 51426), (504, 42855), (540, 39998), (630, 34284), (756, 28570), (840, 25713), (945, 22856), (1080, 19999), (1260, 17142), (1512, 14285), (1890, 11428), (2520, 8571), (2857, 7560), (3780, 5714)]