21750950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{307}}^1$

素因数の和:441

約数の個数: 48

約数和(自身を含む): 44111760

約数和(自身を除く): 22360810

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 109, 130, 218, 307, 325, 545, 614, 650, 1090, 1417, 1535, 2725, 2834, 3070, 3991, 5450, 7085, 7675, 7982, 14170, 15350, 19955, 33463, 35425, 39910, 66926, 70850, 99775, 167315, 199550, 334630, 435019, 836575, 870038, 1673150, 2175095, 4350190, 10875475, 21750950]

約数ペア:

[(1, 21750950), (2, 10875475), (5, 4350190), (10, 2175095), (13, 1673150), (25, 870038), (26, 836575), (50, 435019), (65, 334630), (109, 199550), (130, 167315), (218, 99775), (307, 70850), (325, 66926), (545, 39910), (614, 35425), (650, 33463), (1090, 19955), (1417, 15350), (1535, 14170), (2725, 7982), (2834, 7675), (3070, 7085), (3991, 5450)]