21704030

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1321}}^1$

素因数の和:1412

約数の個数: 32

約数和(自身を含む): 41119488

約数和(自身を除く): 19415458

約数列:

[1, 2, 5, 10, 31, 53, 62, 106, 155, 265, 310, 530, 1321, 1643, 2642, 3286, 6605, 8215, 13210, 16430, 40951, 70013, 81902, 140026, 204755, 350065, 409510, 700130, 2170403, 4340806, 10852015, 21704030]

約数ペア:

[(1, 21704030), (2, 10852015), (5, 4340806), (10, 2170403), (31, 700130), (53, 409510), (62, 350065), (106, 204755), (155, 140026), (265, 81902), (310, 70013), (530, 40951), (1321, 16430), (1643, 13210), (2642, 8215), (3286, 6605)]