19211108

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{401}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 40521600

約数和(自身を除く): 21310492

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 59, 116, 118, 203, 236, 401, 406, 413, 802, 812, 826, 1604, 1652, 1711, 2807, 3422, 5614, 6844, 11228, 11629, 11977, 23258, 23659, 23954, 46516, 47318, 47908, 81403, 94636, 162806, 165613, 325612, 331226, 662452, 686111, 1372222, 2744444, 4802777, 9605554, 19211108]

約数ペア:

[(1, 19211108), (2, 9605554), (4, 4802777), (7, 2744444), (14, 1372222), (28, 686111), (29, 662452), (58, 331226), (59, 325612), (116, 165613), (118, 162806), (203, 94636), (236, 81403), (401, 47908), (406, 47318), (413, 46516), (802, 23954), (812, 23659), (826, 23258), (1604, 11977), (1652, 11629), (1711, 11228), (2807, 6844), (3422, 5614)]