19983915

素因数分解:

$3^4\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1$

素因数の和:103

約数の個数: 120

約数和(自身を含む): 44692560

約数和(自身を除く): 24708645

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 27, 35, 45, 49, 53, 57, 63, 81, 95, 105, 133, 135, 147, 159, 171, 189, 245, 265, 285, 315, 371, 399, 405, 441, 477, 513, 567, 665, 735, 795, 855, 931, 945, 1007, 1113, 1197, 1323, 1431, 1539, 1855, 1995, 2205, 2385, 2565, 2597, 2793, 2835, 3021, 3339, 3591, 3969, 4293, 4655, 5035, 5565, 5985, 6615, 7049, 7155, 7695, 7791, 8379, 9063, 10017, 10773, 12985, 13965, 15105, 16695, 17955, 19845, 21147, 21465, 23373, 25137, 27189, 30051, 35245, 38955, 41895, 45315, 49343, 50085, 53865, 63441, 70119, 75411, 81567, 105735, 116865, 125685, 135945, 148029, 150255, 190323, 210357, 246715, 317205, 350595, 377055, 407835, 444087, 570969, 740145, 951615, 1051785, 1332261, 2220435, 2854845, 3996783, 6661305, 19983915]

約数ペア:

[(1, 19983915), (3, 6661305), (5, 3996783), (7, 2854845), (9, 2220435), (15, 1332261), (19, 1051785), (21, 951615), (27, 740145), (35, 570969), (45, 444087), (49, 407835), (53, 377055), (57, 350595), (63, 317205), (81, 246715), (95, 210357), (105, 190323), (133, 150255), (135, 148029), (147, 135945), (159, 125685), (171, 116865), (189, 105735), (245, 81567), (265, 75411), (285, 70119), (315, 63441), (371, 53865), (399, 50085), (405, 49343), (441, 45315), (477, 41895), (513, 38955), (567, 35245), (665, 30051), (735, 27189), (795, 25137), (855, 23373), (931, 21465), (945, 21147), (1007, 19845), (1113, 17955), (1197, 16695), (1323, 15105), (1431, 13965), (1539, 12985), (1855, 10773), (1995, 10017), (2205, 9063), (2385, 8379), (2565, 7791), (2597, 7695), (2793, 7155), (2835, 7049), (3021, 6615), (3339, 5985), (3591, 5565), (3969, 5035), (4293, 4655)]