19420758

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{97}}^1\times {\mathrm{227}}^1$

素因数の和:346

約数の個数: 72

約数和(自身を含む): 49670712

約数和(自身を除く): 30249954

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 97, 98, 126, 147, 194, 227, 291, 294, 441, 454, 582, 679, 681, 873, 882, 1358, 1362, 1589, 1746, 2037, 2043, 3178, 4074, 4086, 4753, 4767, 6111, 9506, 9534, 11123, 12222, 14259, 14301, 22019, 22246, 28518, 28602, 33369, 42777, 44038, 66057, 66738, 85554, 100107, 132114, 154133, 198171, 200214, 308266, 396342, 462399, 924798, 1078931, 1387197, 2157862, 2774394, 3236793, 6473586, 9710379, 19420758]

約数ペア:

[(1, 19420758), (2, 9710379), (3, 6473586), (6, 3236793), (7, 2774394), (9, 2157862), (14, 1387197), (18, 1078931), (21, 924798), (42, 462399), (49, 396342), (63, 308266), (97, 200214), (98, 198171), (126, 154133), (147, 132114), (194, 100107), (227, 85554), (291, 66738), (294, 66057), (441, 44038), (454, 42777), (582, 33369), (679, 28602), (681, 28518), (873, 22246), (882, 22019), (1358, 14301), (1362, 14259), (1589, 12222), (1746, 11123), (2037, 9534), (2043, 9506), (3178, 6111), (4074, 4767), (4086, 4753)]