18837390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4391}}^1$

素因数の和:4425

約数の個数: 64

約数和(自身を含む): 53125632

約数和(自身を除く): 34288242

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 22, 26, 30, 33, 39, 55, 65, 66, 78, 110, 130, 143, 165, 195, 286, 330, 390, 429, 715, 858, 1430, 2145, 4290, 4391, 8782, 13173, 21955, 26346, 43910, 48301, 57083, 65865, 96602, 114166, 131730, 144903, 171249, 241505, 285415, 289806, 342498, 483010, 570830, 627913, 724515, 856245, 1255826, 1449030, 1712490, 1883739, 3139565, 3767478, 6279130, 9418695, 18837390]

約数ペア:

[(1, 18837390), (2, 9418695), (3, 6279130), (5, 3767478), (6, 3139565), (10, 1883739), (11, 1712490), (13, 1449030), (15, 1255826), (22, 856245), (26, 724515), (30, 627913), (33, 570830), (39, 483010), (55, 342498), (65, 289806), (66, 285415), (78, 241505), (110, 171249), (130, 144903), (143, 131730), (165, 114166), (195, 96602), (286, 65865), (330, 57083), (390, 48301), (429, 43910), (715, 26346), (858, 21955), (1430, 13173), (2145, 8782), (4290, 4391)]