21360534

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:305

約数の個数: 64

約数和(自身を含む): 49533120

約数和(自身を除く): 28172586

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 78, 89, 102, 178, 181, 221, 267, 362, 442, 534, 543, 663, 1086, 1157, 1326, 1513, 2314, 2353, 3026, 3077, 3471, 4539, 4706, 6154, 6942, 7059, 9078, 9231, 14118, 16109, 18462, 19669, 32218, 39338, 40001, 48327, 59007, 80002, 96654, 118014, 120003, 209417, 240006, 273853, 418834, 547706, 628251, 821559, 1256502, 1643118, 3560089, 7120178, 10680267, 21360534]

約数ペア:

[(1, 21360534), (2, 10680267), (3, 7120178), (6, 3560089), (13, 1643118), (17, 1256502), (26, 821559), (34, 628251), (39, 547706), (51, 418834), (78, 273853), (89, 240006), (102, 209417), (178, 120003), (181, 118014), (221, 96654), (267, 80002), (362, 59007), (442, 48327), (534, 40001), (543, 39338), (663, 32218), (1086, 19669), (1157, 18462), (1326, 16109), (1513, 14118), (2314, 9231), (2353, 9078), (3026, 7059), (3077, 6942), (3471, 6154), (4539, 4706)]