21159300

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{251}}^1\times {\mathrm{281}}^1$

素因数の和:549

約数の個数: 72

約数和(自身を含む): 61683552

約数和(自身を除く): 40524252

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 251, 281, 300, 502, 562, 753, 843, 1004, 1124, 1255, 1405, 1506, 1686, 2510, 2810, 3012, 3372, 3765, 4215, 5020, 5620, 6275, 7025, 7530, 8430, 12550, 14050, 15060, 16860, 18825, 21075, 25100, 28100, 37650, 42150, 70531, 75300, 84300, 141062, 211593, 282124, 352655, 423186, 705310, 846372, 1057965, 1410620, 1763275, 2115930, 3526550, 4231860, 5289825, 7053100, 10579650, 21159300]

約数ペア:

[(1, 21159300), (2, 10579650), (3, 7053100), (4, 5289825), (5, 4231860), (6, 3526550), (10, 2115930), (12, 1763275), (15, 1410620), (20, 1057965), (25, 846372), (30, 705310), (50, 423186), (60, 352655), (75, 282124), (100, 211593), (150, 141062), (251, 84300), (281, 75300), (300, 70531), (502, 42150), (562, 37650), (753, 28100), (843, 25100), (1004, 21075), (1124, 18825), (1255, 16860), (1405, 15060), (1506, 14050), (1686, 12550), (2510, 8430), (2810, 7530), (3012, 7025), (3372, 6275), (3765, 5620), (4215, 5020)]