21536460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:248

約数の個数: 144

約数和(自身を含む): 72727200

約数和(自身を除く): 51190740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 73, 90, 99, 110, 132, 146, 149, 165, 180, 198, 219, 220, 292, 298, 330, 365, 396, 438, 447, 495, 596, 657, 660, 730, 745, 803, 876, 894, 990, 1095, 1314, 1341, 1460, 1490, 1606, 1639, 1788, 1980, 2190, 2235, 2409, 2628, 2682, 2980, 3212, 3278, 3285, 4015, 4380, 4470, 4818, 4917, 5364, 6556, 6570, 6705, 7227, 8030, 8195, 8940, 9636, 9834, 10877, 12045, 13140, 13410, 14454, 14751, 16060, 16390, 19668, 21754, 24090, 24585, 26820, 28908, 29502, 32631, 32780, 36135, 43508, 48180, 49170, 54385, 59004, 65262, 72270, 73755, 97893, 98340, 108770, 119647, 130524, 144540, 147510, 163155, 195786, 217540, 239294, 295020, 326310, 358941, 391572, 478588, 489465, 598235, 652620, 717882, 978930, 1076823, 1196470, 1435764, 1794705, 1957860, 2153646, 2392940, 3589410, 4307292, 5384115, 7178820, 10768230, 21536460]

約数ペア:

[(1, 21536460), (2, 10768230), (3, 7178820), (4, 5384115), (5, 4307292), (6, 3589410), (9, 2392940), (10, 2153646), (11, 1957860), (12, 1794705), (15, 1435764), (18, 1196470), (20, 1076823), (22, 978930), (30, 717882), (33, 652620), (36, 598235), (44, 489465), (45, 478588), (55, 391572), (60, 358941), (66, 326310), (73, 295020), (90, 239294), (99, 217540), (110, 195786), (132, 163155), (146, 147510), (149, 144540), (165, 130524), (180, 119647), (198, 108770), (219, 98340), (220, 97893), (292, 73755), (298, 72270), (330, 65262), (365, 59004), (396, 54385), (438, 49170), (447, 48180), (495, 43508), (596, 36135), (657, 32780), (660, 32631), (730, 29502), (745, 28908), (803, 26820), (876, 24585), (894, 24090), (990, 21754), (1095, 19668), (1314, 16390), (1341, 16060), (1460, 14751), (1490, 14454), (1606, 13410), (1639, 13140), (1788, 12045), (1980, 10877), (2190, 9834), (2235, 9636), (2409, 8940), (2628, 8195), (2682, 8030), (2980, 7227), (3212, 6705), (3278, 6570), (3285, 6556), (4015, 5364), (4380, 4917), (4470, 4818)]