21144390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{443}}^1$

素因数の和:533

約数の個数: 64

約数和(自身を含む): 53450496

約数和(自身を除く): 32306106

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 43, 74, 86, 111, 129, 185, 215, 222, 258, 370, 430, 443, 555, 645, 886, 1110, 1290, 1329, 1591, 2215, 2658, 3182, 4430, 4773, 6645, 7955, 9546, 13290, 15910, 16391, 19049, 23865, 32782, 38098, 47730, 49173, 57147, 81955, 95245, 98346, 114294, 163910, 190490, 245865, 285735, 491730, 571470, 704813, 1409626, 2114439, 3524065, 4228878, 7048130, 10572195, 21144390]

約数ペア:

[(1, 21144390), (2, 10572195), (3, 7048130), (5, 4228878), (6, 3524065), (10, 2114439), (15, 1409626), (30, 704813), (37, 571470), (43, 491730), (74, 285735), (86, 245865), (111, 190490), (129, 163910), (185, 114294), (215, 98346), (222, 95245), (258, 81955), (370, 57147), (430, 49173), (443, 47730), (555, 38098), (645, 32782), (886, 23865), (1110, 19049), (1290, 16391), (1329, 15910), (1591, 13290), (2215, 9546), (2658, 7955), (3182, 6645), (4430, 4773)]