21153960

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{6529}}^1$

素因数の和:6552

約数の個数: 80

約数和(自身を含む): 71111700

約数和(自身を除く): 49957740

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240, 6529, 13058, 19587, 26116, 32645, 39174, 52232, 58761, 65290, 78348, 97935, 117522, 130580, 156696, 176283, 195870, 235044, 261160, 293805, 352566, 391740, 470088, 528849, 587610, 705132, 783480, 881415, 1057698, 1175220, 1410264, 1762830, 2115396, 2350440, 2644245, 3525660, 4230792, 5288490, 7051320, 10576980, 21153960]

約数ペア:

[(1, 21153960), (2, 10576980), (3, 7051320), (4, 5288490), (5, 4230792), (6, 3525660), (8, 2644245), (9, 2350440), (10, 2115396), (12, 1762830), (15, 1410264), (18, 1175220), (20, 1057698), (24, 881415), (27, 783480), (30, 705132), (36, 587610), (40, 528849), (45, 470088), (54, 391740), (60, 352566), (72, 293805), (81, 261160), (90, 235044), (108, 195870), (120, 176283), (135, 156696), (162, 130580), (180, 117522), (216, 97935), (270, 78348), (324, 65290), (360, 58761), (405, 52232), (540, 39174), (648, 32645), (810, 26116), (1080, 19587), (1620, 13058), (3240, 6529)]