21153900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{107}}^1\times {\mathrm{659}}^1$

素因数の和:783

約数の個数: 72

約数和(自身を含む): 61871040

約数和(自身を除く): 40717140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 107, 150, 214, 300, 321, 428, 535, 642, 659, 1070, 1284, 1318, 1605, 1977, 2140, 2636, 2675, 3210, 3295, 3954, 5350, 6420, 6590, 7908, 8025, 9885, 10700, 13180, 16050, 16475, 19770, 32100, 32950, 39540, 49425, 65900, 70513, 98850, 141026, 197700, 211539, 282052, 352565, 423078, 705130, 846156, 1057695, 1410260, 1762825, 2115390, 3525650, 4230780, 5288475, 7051300, 10576950, 21153900]

約数ペア:

[(1, 21153900), (2, 10576950), (3, 7051300), (4, 5288475), (5, 4230780), (6, 3525650), (10, 2115390), (12, 1762825), (15, 1410260), (20, 1057695), (25, 846156), (30, 705130), (50, 423078), (60, 352565), (75, 282052), (100, 211539), (107, 197700), (150, 141026), (214, 98850), (300, 70513), (321, 65900), (428, 49425), (535, 39540), (642, 32950), (659, 32100), (1070, 19770), (1284, 16475), (1318, 16050), (1605, 13180), (1977, 10700), (2140, 9885), (2636, 8025), (2675, 7908), (3210, 6590), (3295, 6420), (3954, 5350)]