21455820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{39733}}^1$

素因数の和:39751

約数の個数: 48

約数和(自身を含む): 66753120

約数和(自身を除く): 45297300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 39733, 79466, 119199, 158932, 198665, 238398, 357597, 397330, 476796, 595995, 715194, 794660, 1072791, 1191990, 1430388, 1787985, 2145582, 2383980, 3575970, 4291164, 5363955, 7151940, 10727910, 21455820]

約数ペア:

[(1, 21455820), (2, 10727910), (3, 7151940), (4, 5363955), (5, 4291164), (6, 3575970), (9, 2383980), (10, 2145582), (12, 1787985), (15, 1430388), (18, 1191990), (20, 1072791), (27, 794660), (30, 715194), (36, 595995), (45, 476796), (54, 397330), (60, 357597), (90, 238398), (108, 198665), (135, 158932), (180, 119199), (270, 79466), (540, 39733)]