20715996

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:283

約数の個数: 96

約数和(自身を含む): 59512320

約数和(自身を除く): 38796324

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 34, 42, 51, 68, 84, 89, 102, 119, 163, 178, 204, 238, 267, 326, 356, 357, 476, 489, 534, 623, 652, 714, 978, 1068, 1141, 1246, 1428, 1513, 1869, 1956, 2282, 2492, 2771, 3026, 3423, 3738, 4539, 4564, 5542, 6052, 6846, 7476, 8313, 9078, 10591, 11084, 13692, 14507, 16626, 18156, 19397, 21182, 29014, 31773, 33252, 38794, 42364, 43521, 58028, 58191, 63546, 77588, 87042, 101549, 116382, 127092, 174084, 203098, 232764, 246619, 304647, 406196, 493238, 609294, 739857, 986476, 1218588, 1479714, 1726333, 2959428, 3452666, 5178999, 6905332, 10357998, 20715996]

約数ペア:

[(1, 20715996), (2, 10357998), (3, 6905332), (4, 5178999), (6, 3452666), (7, 2959428), (12, 1726333), (14, 1479714), (17, 1218588), (21, 986476), (28, 739857), (34, 609294), (42, 493238), (51, 406196), (68, 304647), (84, 246619), (89, 232764), (102, 203098), (119, 174084), (163, 127092), (178, 116382), (204, 101549), (238, 87042), (267, 77588), (326, 63546), (356, 58191), (357, 58028), (476, 43521), (489, 42364), (534, 38794), (623, 33252), (652, 31773), (714, 29014), (978, 21182), (1068, 19397), (1141, 18156), (1246, 16626), (1428, 14507), (1513, 13692), (1869, 11084), (1956, 10591), (2282, 9078), (2492, 8313), (2771, 7476), (3026, 6846), (3423, 6052), (3738, 5542), (4539, 4564)]