21172590

素因数分解:

$2^1\times 3^5\times 5^1\times {\mathrm{8713}}^1$

素因数の和:8735

約数の個数: 48

約数和(自身を含む): 57094128

約数和(自身を除く): 35921538

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 405, 486, 810, 1215, 2430, 8713, 17426, 26139, 43565, 52278, 78417, 87130, 130695, 156834, 235251, 261390, 392085, 470502, 705753, 784170, 1176255, 1411506, 2117259, 2352510, 3528765, 4234518, 7057530, 10586295, 21172590]

約数ペア:

[(1, 21172590), (2, 10586295), (3, 7057530), (5, 4234518), (6, 3528765), (9, 2352510), (10, 2117259), (15, 1411506), (18, 1176255), (27, 784170), (30, 705753), (45, 470502), (54, 392085), (81, 261390), (90, 235251), (135, 156834), (162, 130695), (243, 87130), (270, 78417), (405, 52278), (486, 43565), (810, 26139), (1215, 17426), (2430, 8713)]