21455340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{353}}^1\times {\mathrm{1013}}^1$

素因数の和:1378

約数の個数: 48

約数和(自身を含む): 60304608

約数和(自身を除く): 38849268

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 353, 706, 1013, 1059, 1412, 1765, 2026, 2118, 3039, 3530, 4052, 4236, 5065, 5295, 6078, 7060, 10130, 10590, 12156, 15195, 20260, 21180, 30390, 60780, 357589, 715178, 1072767, 1430356, 1787945, 2145534, 3575890, 4291068, 5363835, 7151780, 10727670, 21455340]

約数ペア:

[(1, 21455340), (2, 10727670), (3, 7151780), (4, 5363835), (5, 4291068), (6, 3575890), (10, 2145534), (12, 1787945), (15, 1430356), (20, 1072767), (30, 715178), (60, 357589), (353, 60780), (706, 30390), (1013, 21180), (1059, 20260), (1412, 15195), (1765, 12156), (2026, 10590), (2118, 10130), (3039, 7060), (3530, 6078), (4052, 5295), (4236, 5065)]