21567645

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{233}}^1$

素因数の和:283

約数の個数: 72

約数和(自身を含む): 43695288

約数和(自身を除く): 22127643

約数列:

[1, 3, 5, 9, 11, 15, 17, 33, 45, 51, 55, 85, 99, 121, 153, 165, 187, 233, 255, 363, 495, 561, 605, 699, 765, 935, 1089, 1165, 1683, 1815, 2057, 2097, 2563, 2805, 3495, 3961, 5445, 6171, 7689, 8415, 10285, 10485, 11883, 12815, 18513, 19805, 23067, 28193, 30855, 35649, 38445, 43571, 59415, 84579, 92565, 115335, 130713, 140965, 178245, 217855, 253737, 392139, 422895, 479281, 653565, 1268685, 1437843, 1960695, 2396405, 4313529, 7189215, 21567645]

約数ペア:

[(1, 21567645), (3, 7189215), (5, 4313529), (9, 2396405), (11, 1960695), (15, 1437843), (17, 1268685), (33, 653565), (45, 479281), (51, 422895), (55, 392139), (85, 253737), (99, 217855), (121, 178245), (153, 140965), (165, 130713), (187, 115335), (233, 92565), (255, 84579), (363, 59415), (495, 43571), (561, 38445), (605, 35649), (699, 30855), (765, 28193), (935, 23067), (1089, 19805), (1165, 18513), (1683, 12815), (1815, 11883), (2057, 10485), (2097, 10285), (2563, 8415), (2805, 7689), (3495, 6171), (3961, 5445)]