21000604380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{50001439}}^1$

素因数の和:50001458

約数の個数: 48

約数和(自身を含む): 67201935360

約数和(自身を除く): 46201330980

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, 210, 420, 50001439, 100002878, 150004317, 200005756, 250007195, 300008634, 350010073, 500014390, 600017268, 700020146, 750021585, 1000028780, 1050030219, 1400040292, 1500043170, 1750050365, 2100060438, 3000086340, 3500100730, 4200120876, 5250151095, 7000201460, 10500302190, 21000604380]

約数ペア:

[(1, 21000604380), (2, 10500302190), (3, 7000201460), (4, 5250151095), (5, 4200120876), (6, 3500100730), (7, 3000086340), (10, 2100060438), (12, 1750050365), (14, 1500043170), (15, 1400040292), (20, 1050030219), (21, 1000028780), (28, 750021585), (30, 700020146), (35, 600017268), (42, 500014390), (60, 350010073), (70, 300008634), (84, 250007195), (105, 200005756), (140, 150004317), (210, 100002878), (420, 50001439)]