21840210

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{34667}}^1$

素因数の和:34687

約数の個数: 48

約数和(自身を含む): 64898496

約数和(自身を除く): 43058286

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 34667, 69334, 104001, 173335, 208002, 242669, 312003, 346670, 485338, 520005, 624006, 728007, 1040010, 1213345, 1456014, 1560015, 2184021, 2426690, 3120030, 3640035, 4368042, 7280070, 10920105, 21840210]

約数ペア:

[(1, 21840210), (2, 10920105), (3, 7280070), (5, 4368042), (6, 3640035), (7, 3120030), (9, 2426690), (10, 2184021), (14, 1560015), (15, 1456014), (18, 1213345), (21, 1040010), (30, 728007), (35, 624006), (42, 520005), (45, 485338), (63, 346670), (70, 312003), (90, 242669), (105, 208002), (126, 173335), (210, 104001), (315, 69334), (630, 34667)]