28139685

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{1019}}^1$

素因数の和:1297

約数の個数: 32

約数和(自身を含む): 51701760

約数和(自身を除く): 23562075

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 263, 789, 1019, 1315, 1841, 3057, 3945, 5095, 5523, 7133, 9205, 15285, 21399, 27615, 35665, 106995, 267997, 803991, 1339985, 1875979, 4019955, 5627937, 9379895, 28139685]

約数ペア:

[(1, 28139685), (3, 9379895), (5, 5627937), (7, 4019955), (15, 1875979), (21, 1339985), (35, 803991), (105, 267997), (263, 106995), (789, 35665), (1019, 27615), (1315, 21399), (1841, 15285), (3057, 9205), (3945, 7133), (5095, 5523)]