21206300

素因数分解:

$2^2\times 5^2\times {\mathrm{163}}^1\times {\mathrm{1301}}^1$

素因数の和:1478

約数の個数: 36

約数和(自身を含む): 46335576

約数和(自身を除く): 25129276

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 163, 326, 652, 815, 1301, 1630, 2602, 3260, 4075, 5204, 6505, 8150, 13010, 16300, 26020, 32525, 65050, 130100, 212063, 424126, 848252, 1060315, 2120630, 4241260, 5301575, 10603150, 21206300]

約数ペア:

[(1, 21206300), (2, 10603150), (4, 5301575), (5, 4241260), (10, 2120630), (20, 1060315), (25, 848252), (50, 424126), (100, 212063), (163, 130100), (326, 65050), (652, 32525), (815, 26020), (1301, 16300), (1630, 13010), (2602, 8150), (3260, 6505), (4075, 5204)]