21100150

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{13613}}^1$

素因数の和:13656

約数の個数: 24

約数和(自身を含む): 40515264

約数和(自身を除く): 19415114

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 155, 310, 775, 1550, 13613, 27226, 68065, 136130, 340325, 422003, 680650, 844006, 2110015, 4220030, 10550075, 21100150]

約数ペア:

[(1, 21100150), (2, 10550075), (5, 4220030), (10, 2110015), (25, 844006), (31, 680650), (50, 422003), (62, 340325), (155, 136130), (310, 68065), (775, 27226), (1550, 13613)]