21239358

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{197}}^1$

素因数の和:377

約数の個数: 64

約数和(自身を含む): 52005888

約数和(自身を除く): 30766530

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 51, 102, 119, 151, 197, 238, 302, 357, 394, 453, 591, 714, 906, 1057, 1182, 1379, 2114, 2567, 2758, 3171, 3349, 4137, 5134, 6342, 6698, 7701, 8274, 10047, 15402, 17969, 20094, 23443, 29747, 35938, 46886, 53907, 59494, 70329, 89241, 107814, 140658, 178482, 208229, 416458, 505699, 624687, 1011398, 1249374, 1517097, 3034194, 3539893, 7079786, 10619679, 21239358]

約数ペア:

[(1, 21239358), (2, 10619679), (3, 7079786), (6, 3539893), (7, 3034194), (14, 1517097), (17, 1249374), (21, 1011398), (34, 624687), (42, 505699), (51, 416458), (102, 208229), (119, 178482), (151, 140658), (197, 107814), (238, 89241), (302, 70329), (357, 59494), (394, 53907), (453, 46886), (591, 35938), (714, 29747), (906, 23443), (1057, 20094), (1182, 17969), (1379, 15402), (2114, 10047), (2567, 8274), (2758, 7701), (3171, 6698), (3349, 6342), (4137, 5134)]