21127050

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1$

素因数の和:397

約数の個数: 144

約数和(自身を含む): 68477760

約数和(自身を除く): 47350710

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 25, 30, 35, 38, 42, 45, 50, 57, 63, 70, 75, 90, 95, 105, 114, 126, 133, 150, 171, 175, 190, 210, 225, 266, 285, 315, 342, 350, 353, 399, 450, 475, 525, 570, 630, 665, 706, 798, 855, 950, 1050, 1059, 1197, 1330, 1425, 1575, 1710, 1765, 1995, 2118, 2394, 2471, 2850, 3150, 3177, 3325, 3530, 3990, 4275, 4942, 5295, 5985, 6354, 6650, 6707, 7413, 8550, 8825, 9975, 10590, 11970, 12355, 13414, 14826, 15885, 17650, 19950, 20121, 22239, 24710, 26475, 29925, 31770, 33535, 37065, 40242, 44478, 46949, 52950, 59850, 60363, 61775, 67070, 74130, 79425, 93898, 100605, 111195, 120726, 123550, 140847, 158850, 167675, 185325, 201210, 222390, 234745, 281694, 301815, 335350, 370650, 422541, 469490, 503025, 555975, 603630, 704235, 845082, 1006050, 1111950, 1173725, 1408470, 1509075, 2112705, 2347450, 3018150, 3521175, 4225410, 7042350, 10563525, 21127050]

約数ペア:

[(1, 21127050), (2, 10563525), (3, 7042350), (5, 4225410), (6, 3521175), (7, 3018150), (9, 2347450), (10, 2112705), (14, 1509075), (15, 1408470), (18, 1173725), (19, 1111950), (21, 1006050), (25, 845082), (30, 704235), (35, 603630), (38, 555975), (42, 503025), (45, 469490), (50, 422541), (57, 370650), (63, 335350), (70, 301815), (75, 281694), (90, 234745), (95, 222390), (105, 201210), (114, 185325), (126, 167675), (133, 158850), (150, 140847), (171, 123550), (175, 120726), (190, 111195), (210, 100605), (225, 93898), (266, 79425), (285, 74130), (315, 67070), (342, 61775), (350, 60363), (353, 59850), (399, 52950), (450, 46949), (475, 44478), (525, 40242), (570, 37065), (630, 33535), (665, 31770), (706, 29925), (798, 26475), (855, 24710), (950, 22239), (1050, 20121), (1059, 19950), (1197, 17650), (1330, 15885), (1425, 14826), (1575, 13414), (1710, 12355), (1765, 11970), (1995, 10590), (2118, 9975), (2394, 8825), (2471, 8550), (2850, 7413), (3150, 6707), (3177, 6650), (3325, 6354), (3530, 5985), (3990, 5295), (4275, 4942)]