19656945

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:124

約数の個数: 128

約数和(自身を含む): 45711360

約数和(自身を除く): 26054415

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 27, 31, 33, 35, 45, 55, 61, 63, 77, 93, 99, 105, 135, 155, 165, 183, 189, 217, 231, 279, 297, 305, 315, 341, 385, 427, 465, 495, 549, 651, 671, 693, 837, 915, 945, 1023, 1085, 1155, 1281, 1395, 1485, 1647, 1705, 1891, 1953, 2013, 2079, 2135, 2387, 2745, 3069, 3255, 3355, 3465, 3843, 4185, 4697, 5115, 5673, 5859, 6039, 6405, 7161, 8235, 9207, 9455, 9765, 10065, 10395, 11529, 11935, 13237, 14091, 15345, 17019, 18117, 19215, 20801, 21483, 23485, 28365, 29295, 30195, 35805, 39711, 42273, 46035, 51057, 57645, 62403, 64449, 66185, 70455, 85095, 90585, 104005, 107415, 119133, 126819, 145607, 187209, 198555, 211365, 255285, 312015, 322245, 357399, 436821, 561627, 595665, 634095, 728035, 936045, 1310463, 1786995, 2184105, 2808135, 3931389, 6552315, 19656945]

約数ペア:

[(1, 19656945), (3, 6552315), (5, 3931389), (7, 2808135), (9, 2184105), (11, 1786995), (15, 1310463), (21, 936045), (27, 728035), (31, 634095), (33, 595665), (35, 561627), (45, 436821), (55, 357399), (61, 322245), (63, 312015), (77, 255285), (93, 211365), (99, 198555), (105, 187209), (135, 145607), (155, 126819), (165, 119133), (183, 107415), (189, 104005), (217, 90585), (231, 85095), (279, 70455), (297, 66185), (305, 64449), (315, 62403), (341, 57645), (385, 51057), (427, 46035), (465, 42273), (495, 39711), (549, 35805), (651, 30195), (671, 29295), (693, 28365), (837, 23485), (915, 21483), (945, 20801), (1023, 19215), (1085, 18117), (1155, 17019), (1281, 15345), (1395, 14091), (1485, 13237), (1647, 11935), (1705, 11529), (1891, 10395), (1953, 10065), (2013, 9765), (2079, 9455), (2135, 9207), (2387, 8235), (2745, 7161), (3069, 6405), (3255, 6039), (3355, 5859), (3465, 5673), (3843, 5115), (4185, 4697)]