21500920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{4517}}^1$

素因数の和:4552

約数の個数: 64

約数和(自身を含む): 58553280

約数和(自身を除く): 37052360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 170, 238, 280, 340, 476, 595, 680, 952, 1190, 2380, 4517, 4760, 9034, 18068, 22585, 31619, 36136, 45170, 63238, 76789, 90340, 126476, 153578, 158095, 180680, 252952, 307156, 316190, 383945, 537523, 614312, 632380, 767890, 1075046, 1264760, 1535780, 2150092, 2687615, 3071560, 4300184, 5375230, 10750460, 21500920]

約数ペア:

[(1, 21500920), (2, 10750460), (4, 5375230), (5, 4300184), (7, 3071560), (8, 2687615), (10, 2150092), (14, 1535780), (17, 1264760), (20, 1075046), (28, 767890), (34, 632380), (35, 614312), (40, 537523), (56, 383945), (68, 316190), (70, 307156), (85, 252952), (119, 180680), (136, 158095), (140, 153578), (170, 126476), (238, 90340), (280, 76789), (340, 63238), (476, 45170), (595, 36136), (680, 31619), (952, 22585), (1190, 18068), (2380, 9034), (4517, 4760)]