18443205

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:131

約数の個数: 96

約数和(自身を含む): 38413440

約数和(自身を除く): 19970235

約数列:

[1, 3, 5, 9, 11, 15, 19, 33, 37, 45, 53, 55, 57, 95, 99, 111, 159, 165, 171, 185, 209, 265, 285, 333, 407, 477, 495, 555, 583, 627, 703, 795, 855, 1007, 1045, 1221, 1665, 1749, 1881, 1961, 2035, 2109, 2385, 2915, 3021, 3135, 3515, 3663, 5035, 5247, 5883, 6105, 6327, 7733, 8745, 9063, 9405, 9805, 10545, 11077, 15105, 17649, 18315, 21571, 23199, 26235, 29415, 31635, 33231, 37259, 38665, 45315, 55385, 64713, 69597, 88245, 99693, 107855, 111777, 115995, 166155, 186295, 194139, 323565, 335331, 347985, 409849, 498465, 558885, 970695, 1229547, 1676655, 2049245, 3688641, 6147735, 18443205]

約数ペア:

[(1, 18443205), (3, 6147735), (5, 3688641), (9, 2049245), (11, 1676655), (15, 1229547), (19, 970695), (33, 558885), (37, 498465), (45, 409849), (53, 347985), (55, 335331), (57, 323565), (95, 194139), (99, 186295), (111, 166155), (159, 115995), (165, 111777), (171, 107855), (185, 99693), (209, 88245), (265, 69597), (285, 64713), (333, 55385), (407, 45315), (477, 38665), (495, 37259), (555, 33231), (583, 31635), (627, 29415), (703, 26235), (795, 23199), (855, 21571), (1007, 18315), (1045, 17649), (1221, 15105), (1665, 11077), (1749, 10545), (1881, 9805), (1961, 9405), (2035, 9063), (2109, 8745), (2385, 7733), (2915, 6327), (3021, 6105), (3135, 5883), (3515, 5247), (3663, 5035)]