21861720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{60727}}^1$

素因数の和:60744

約数の個数: 48

約数和(自身を含む): 71051760

約数和(自身を除く): 49190040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 60727, 121454, 182181, 242908, 303635, 364362, 485816, 546543, 607270, 728724, 910905, 1093086, 1214540, 1457448, 1821810, 2186172, 2429080, 2732715, 3643620, 4372344, 5465430, 7287240, 10930860, 21861720]

約数ペア:

[(1, 21861720), (2, 10930860), (3, 7287240), (4, 5465430), (5, 4372344), (6, 3643620), (8, 2732715), (9, 2429080), (10, 2186172), (12, 1821810), (15, 1457448), (18, 1214540), (20, 1093086), (24, 910905), (30, 728724), (36, 607270), (40, 546543), (45, 485816), (60, 364362), (72, 303635), (90, 242908), (120, 182181), (180, 121454), (360, 60727)]