21453860

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{34603}}^1$

素因数の和:34643

約数の個数: 24

約数和(自身を含む): 46507776

約数和(自身を除く): 25053916

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 34603, 69206, 138412, 173015, 346030, 692060, 1072693, 2145386, 4290772, 5363465, 10726930, 21453860]

約数ペア:

[(1, 21453860), (2, 10726930), (4, 5363465), (5, 4290772), (10, 2145386), (20, 1072693), (31, 692060), (62, 346030), (124, 173015), (155, 138412), (310, 69206), (620, 34603)]