21254730

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{761}}^1$

素因数の和:804

約数の個数: 96

約数和(自身を含む): 62544960

約数和(自身を除く): 41290230

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 49, 57, 70, 95, 98, 105, 114, 133, 147, 190, 210, 245, 266, 285, 294, 399, 490, 570, 665, 735, 761, 798, 931, 1330, 1470, 1522, 1862, 1995, 2283, 2793, 3805, 3990, 4566, 4655, 5327, 5586, 7610, 9310, 10654, 11415, 13965, 14459, 15981, 22830, 26635, 27930, 28918, 31962, 37289, 43377, 53270, 72295, 74578, 79905, 86754, 101213, 111867, 144590, 159810, 186445, 202426, 216885, 223734, 303639, 372890, 433770, 506065, 559335, 607278, 708491, 1012130, 1118670, 1416982, 1518195, 2125473, 3036390, 3542455, 4250946, 7084910, 10627365, 21254730]

約数ペア:

[(1, 21254730), (2, 10627365), (3, 7084910), (5, 4250946), (6, 3542455), (7, 3036390), (10, 2125473), (14, 1518195), (15, 1416982), (19, 1118670), (21, 1012130), (30, 708491), (35, 607278), (38, 559335), (42, 506065), (49, 433770), (57, 372890), (70, 303639), (95, 223734), (98, 216885), (105, 202426), (114, 186445), (133, 159810), (147, 144590), (190, 111867), (210, 101213), (245, 86754), (266, 79905), (285, 74578), (294, 72295), (399, 53270), (490, 43377), (570, 37289), (665, 31962), (735, 28918), (761, 27930), (798, 26635), (931, 22830), (1330, 15981), (1470, 14459), (1522, 13965), (1862, 11415), (1995, 10654), (2283, 9310), (2793, 7610), (3805, 5586), (3990, 5327), (4566, 4655)]