21511830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{23131}}^1$

素因数の和:23172

約数の個数: 32

約数和(自身を含む): 53296128

約数和(自身を除く): 31784298

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 155, 186, 310, 465, 930, 23131, 46262, 69393, 115655, 138786, 231310, 346965, 693930, 717061, 1434122, 2151183, 3585305, 4302366, 7170610, 10755915, 21511830]

約数ペア:

[(1, 21511830), (2, 10755915), (3, 7170610), (5, 4302366), (6, 3585305), (10, 2151183), (15, 1434122), (30, 717061), (31, 693930), (62, 346965), (93, 231310), (155, 138786), (186, 115655), (310, 69393), (465, 46262), (930, 23131)]