212818935

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{223}}^1$

素因数の和:448

約数の個数: 64

約数和(自身を含む): 399974400

約数和(自身を除く): 187155465

約数列:

[1, 3, 5, 7, 15, 21, 35, 61, 105, 149, 183, 223, 305, 427, 447, 669, 745, 915, 1043, 1115, 1281, 1561, 2135, 2235, 3129, 3345, 4683, 5215, 6405, 7805, 9089, 13603, 15645, 23415, 27267, 33227, 40809, 45445, 63623, 68015, 95221, 99681, 136335, 166135, 190869, 204045, 232589, 285663, 318115, 476105, 498405, 697767, 954345, 1162945, 1428315, 2026847, 3488835, 6080541, 10134235, 14187929, 30402705, 42563787, 70939645, 212818935]

約数ペア:

[(1, 212818935), (3, 70939645), (5, 42563787), (7, 30402705), (15, 14187929), (21, 10134235), (35, 6080541), (61, 3488835), (105, 2026847), (149, 1428315), (183, 1162945), (223, 954345), (305, 697767), (427, 498405), (447, 476105), (669, 318115), (745, 285663), (915, 232589), (1043, 204045), (1115, 190869), (1281, 166135), (1561, 136335), (2135, 99681), (2235, 95221), (3129, 68015), (3345, 63623), (4683, 45445), (5215, 40809), (6405, 33227), (7805, 27267), (9089, 23415), (13603, 15645)]