19997736

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{359}}^1$

素因数の和:590

約数の個数: 64

約数和(自身を含む): 54950400

約数和(自身を除く): 34952664

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 132, 211, 264, 359, 422, 633, 718, 844, 1077, 1266, 1436, 1688, 2154, 2321, 2532, 2872, 3949, 4308, 4642, 5064, 6963, 7898, 8616, 9284, 11847, 13926, 15796, 18568, 23694, 27852, 31592, 47388, 55704, 75749, 94776, 151498, 227247, 302996, 454494, 605992, 833239, 908988, 1666478, 1817976, 2499717, 3332956, 4999434, 6665912, 9998868, 19997736]

約数ペア:

[(1, 19997736), (2, 9998868), (3, 6665912), (4, 4999434), (6, 3332956), (8, 2499717), (11, 1817976), (12, 1666478), (22, 908988), (24, 833239), (33, 605992), (44, 454494), (66, 302996), (88, 227247), (132, 151498), (211, 94776), (264, 75749), (359, 55704), (422, 47388), (633, 31592), (718, 27852), (844, 23694), (1077, 18568), (1266, 15796), (1436, 13926), (1688, 11847), (2154, 9284), (2321, 8616), (2532, 7898), (2872, 6963), (3949, 5064), (4308, 4642)]