21089460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{337}}^1$

素因数の和:505

約数の個数: 96

約数和(自身を含む): 68140800

約数和(自身を除く): 47051340

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 149, 210, 298, 337, 420, 447, 596, 674, 745, 894, 1011, 1043, 1348, 1490, 1685, 1788, 2022, 2086, 2235, 2359, 2980, 3129, 3370, 4044, 4172, 4470, 4718, 5055, 5215, 6258, 6740, 7077, 8940, 9436, 10110, 10430, 11795, 12516, 14154, 15645, 20220, 20860, 23590, 28308, 31290, 35385, 47180, 50213, 62580, 70770, 100426, 141540, 150639, 200852, 251065, 301278, 351491, 502130, 602556, 702982, 753195, 1004260, 1054473, 1405964, 1506390, 1757455, 2108946, 3012780, 3514910, 4217892, 5272365, 7029820, 10544730, 21089460]

約数ペア:

[(1, 21089460), (2, 10544730), (3, 7029820), (4, 5272365), (5, 4217892), (6, 3514910), (7, 3012780), (10, 2108946), (12, 1757455), (14, 1506390), (15, 1405964), (20, 1054473), (21, 1004260), (28, 753195), (30, 702982), (35, 602556), (42, 502130), (60, 351491), (70, 301278), (84, 251065), (105, 200852), (140, 150639), (149, 141540), (210, 100426), (298, 70770), (337, 62580), (420, 50213), (447, 47180), (596, 35385), (674, 31290), (745, 28308), (894, 23590), (1011, 20860), (1043, 20220), (1348, 15645), (1490, 14154), (1685, 12516), (1788, 11795), (2022, 10430), (2086, 10110), (2235, 9436), (2359, 8940), (2980, 7077), (3129, 6740), (3370, 6258), (4044, 5215), (4172, 5055), (4470, 4718)]