21153210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{743}}^1$

素因数の和:839

約数の個数: 64

約数和(自身を含む): 55496448

約数和(自身を除く): 34343238

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 73, 78, 130, 146, 195, 219, 365, 390, 438, 730, 743, 949, 1095, 1486, 1898, 2190, 2229, 2847, 3715, 4458, 4745, 5694, 7430, 9490, 9659, 11145, 14235, 19318, 22290, 28470, 28977, 48295, 54239, 57954, 96590, 108478, 144885, 162717, 271195, 289770, 325434, 542390, 705107, 813585, 1410214, 1627170, 2115321, 3525535, 4230642, 7051070, 10576605, 21153210]

約数ペア:

[(1, 21153210), (2, 10576605), (3, 7051070), (5, 4230642), (6, 3525535), (10, 2115321), (13, 1627170), (15, 1410214), (26, 813585), (30, 705107), (39, 542390), (65, 325434), (73, 289770), (78, 271195), (130, 162717), (146, 144885), (195, 108478), (219, 96590), (365, 57954), (390, 54239), (438, 48295), (730, 28977), (743, 28470), (949, 22290), (1095, 19318), (1486, 14235), (1898, 11145), (2190, 9659), (2229, 9490), (2847, 7430), (3715, 5694), (4458, 4745)]