21643740

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{269}}^1$

素因数の和:436

約数の個数: 96

約数和(自身を含む): 68040000

約数和(自身を除く): 46396260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 149, 180, 269, 270, 298, 447, 538, 540, 596, 745, 807, 894, 1076, 1341, 1345, 1490, 1614, 1788, 2235, 2421, 2682, 2690, 2980, 3228, 4023, 4035, 4470, 4842, 5364, 5380, 6705, 7263, 8046, 8070, 8940, 9684, 12105, 13410, 14526, 16092, 16140, 20115, 24210, 26820, 29052, 36315, 40081, 40230, 48420, 72630, 80162, 80460, 120243, 145260, 160324, 200405, 240486, 360729, 400810, 480972, 601215, 721458, 801620, 1082187, 1202430, 1442916, 1803645, 2164374, 2404860, 3607290, 4328748, 5410935, 7214580, 10821870, 21643740]

約数ペア:

[(1, 21643740), (2, 10821870), (3, 7214580), (4, 5410935), (5, 4328748), (6, 3607290), (9, 2404860), (10, 2164374), (12, 1803645), (15, 1442916), (18, 1202430), (20, 1082187), (27, 801620), (30, 721458), (36, 601215), (45, 480972), (54, 400810), (60, 360729), (90, 240486), (108, 200405), (135, 160324), (149, 145260), (180, 120243), (269, 80460), (270, 80162), (298, 72630), (447, 48420), (538, 40230), (540, 40081), (596, 36315), (745, 29052), (807, 26820), (894, 24210), (1076, 20115), (1341, 16140), (1345, 16092), (1490, 14526), (1614, 13410), (1788, 12105), (2235, 9684), (2421, 8940), (2682, 8070), (2690, 8046), (2980, 7263), (3228, 6705), (4023, 5380), (4035, 5364), (4470, 4842)]