21490709520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12792089}}^1$

素因数の和:12792112

約数の個数: 80

約数和(自身を含む): 76138519680

約数和(自身を除く): 54647810160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 12792089, 25584178, 38376267, 51168356, 63960445, 76752534, 89544623, 102336712, 127920890, 153505068, 179089246, 191881335, 204673424, 255841780, 268633869, 307010136, 358178492, 383762670, 447723115, 511683560, 537267738, 614020272, 716356984, 767525340, 895446230, 1023367120, 1074535476, 1343169345, 1432713968, 1535050680, 1790892460, 2149070952, 2686338690, 3070101360, 3581784920, 4298141904, 5372677380, 7163569840, 10745354760, 21490709520]

約数ペア:

[(1, 21490709520), (2, 10745354760), (3, 7163569840), (4, 5372677380), (5, 4298141904), (6, 3581784920), (7, 3070101360), (8, 2686338690), (10, 2149070952), (12, 1790892460), (14, 1535050680), (15, 1432713968), (16, 1343169345), (20, 1074535476), (21, 1023367120), (24, 895446230), (28, 767525340), (30, 716356984), (35, 614020272), (40, 537267738), (42, 511683560), (48, 447723115), (56, 383762670), (60, 358178492), (70, 307010136), (80, 268633869), (84, 255841780), (105, 204673424), (112, 191881335), (120, 179089246), (140, 153505068), (168, 127920890), (210, 102336712), (240, 89544623), (280, 76752534), (336, 63960445), (420, 51168356), (560, 38376267), (840, 25584178), (1680, 12792089)]