20956950

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{6653}}^1$

素因数の和:6678

約数の個数: 72

約数和(自身を含む): 64357488

約数和(自身を除く): 43400538

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 50, 63, 70, 75, 90, 105, 126, 150, 175, 210, 225, 315, 350, 450, 525, 630, 1050, 1575, 3150, 6653, 13306, 19959, 33265, 39918, 46571, 59877, 66530, 93142, 99795, 119754, 139713, 166325, 199590, 232855, 279426, 299385, 332650, 419139, 465710, 498975, 598770, 698565, 838278, 997950, 1164275, 1397130, 1496925, 2095695, 2328550, 2993850, 3492825, 4191390, 6985650, 10478475, 20956950]

約数ペア:

[(1, 20956950), (2, 10478475), (3, 6985650), (5, 4191390), (6, 3492825), (7, 2993850), (9, 2328550), (10, 2095695), (14, 1496925), (15, 1397130), (18, 1164275), (21, 997950), (25, 838278), (30, 698565), (35, 598770), (42, 498975), (45, 465710), (50, 419139), (63, 332650), (70, 299385), (75, 279426), (90, 232855), (105, 199590), (126, 166325), (150, 139713), (175, 119754), (210, 99795), (225, 93142), (315, 66530), (350, 59877), (450, 46571), (525, 39918), (630, 33265), (1050, 19959), (1575, 13306), (3150, 6653)]