21161880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{2027}}^1$

素因数の和:2073

約数の個数: 96

約数和(自身を含む): 71182800

約数和(自身を除く): 50020920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 29, 30, 36, 40, 45, 58, 60, 72, 87, 90, 116, 120, 145, 174, 180, 232, 261, 290, 348, 360, 435, 522, 580, 696, 870, 1044, 1160, 1305, 1740, 2027, 2088, 2610, 3480, 4054, 5220, 6081, 8108, 10135, 10440, 12162, 16216, 18243, 20270, 24324, 30405, 36486, 40540, 48648, 58783, 60810, 72972, 81080, 91215, 117566, 121620, 145944, 176349, 182430, 235132, 243240, 293915, 352698, 364860, 470264, 529047, 587830, 705396, 729720, 881745, 1058094, 1175660, 1410792, 1763490, 2116188, 2351320, 2645235, 3526980, 4232376, 5290470, 7053960, 10580940, 21161880]

約数ペア:

[(1, 21161880), (2, 10580940), (3, 7053960), (4, 5290470), (5, 4232376), (6, 3526980), (8, 2645235), (9, 2351320), (10, 2116188), (12, 1763490), (15, 1410792), (18, 1175660), (20, 1058094), (24, 881745), (29, 729720), (30, 705396), (36, 587830), (40, 529047), (45, 470264), (58, 364860), (60, 352698), (72, 293915), (87, 243240), (90, 235132), (116, 182430), (120, 176349), (145, 145944), (174, 121620), (180, 117566), (232, 91215), (261, 81080), (290, 72972), (348, 60810), (360, 58783), (435, 48648), (522, 40540), (580, 36486), (696, 30405), (870, 24324), (1044, 20270), (1160, 18243), (1305, 16216), (1740, 12162), (2027, 10440), (2088, 10135), (2610, 8108), (3480, 6081), (4054, 5220)]