19150308

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:281

約数の個数: 72

約数和(自身を含む): 50450400

約数和(自身を除く): 31300092

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 89, 129, 139, 172, 178, 258, 267, 278, 356, 387, 417, 516, 534, 556, 774, 801, 834, 1068, 1251, 1548, 1602, 1668, 2502, 3204, 3827, 5004, 5977, 7654, 11481, 11954, 12371, 15308, 17931, 22962, 23908, 24742, 34443, 35862, 37113, 45924, 49484, 53793, 68886, 71724, 74226, 107586, 111339, 137772, 148452, 215172, 222678, 445356, 531953, 1063906, 1595859, 2127812, 3191718, 4787577, 6383436, 9575154, 19150308]

約数ペア:

[(1, 19150308), (2, 9575154), (3, 6383436), (4, 4787577), (6, 3191718), (9, 2127812), (12, 1595859), (18, 1063906), (36, 531953), (43, 445356), (86, 222678), (89, 215172), (129, 148452), (139, 137772), (172, 111339), (178, 107586), (258, 74226), (267, 71724), (278, 68886), (356, 53793), (387, 49484), (417, 45924), (516, 37113), (534, 35862), (556, 34443), (774, 24742), (801, 23908), (834, 22962), (1068, 17931), (1251, 15308), (1548, 12371), (1602, 11954), (1668, 11481), (2502, 7654), (3204, 5977), (3827, 5004)]