21372036

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1913}}^1$

素因数の和:1953

約数の個数: 72

約数和(自身を含む): 61094880

約数和(自身を除く): 39722844

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 49, 57, 76, 84, 98, 114, 133, 147, 196, 228, 266, 294, 399, 532, 588, 798, 931, 1596, 1862, 1913, 2793, 3724, 3826, 5586, 5739, 7652, 11172, 11478, 13391, 22956, 26782, 36347, 40173, 53564, 72694, 80346, 93737, 109041, 145388, 160692, 187474, 218082, 254429, 281211, 374948, 436164, 508858, 562422, 763287, 1017716, 1124844, 1526574, 1781003, 3053148, 3562006, 5343009, 7124012, 10686018, 21372036]

約数ペア:

[(1, 21372036), (2, 10686018), (3, 7124012), (4, 5343009), (6, 3562006), (7, 3053148), (12, 1781003), (14, 1526574), (19, 1124844), (21, 1017716), (28, 763287), (38, 562422), (42, 508858), (49, 436164), (57, 374948), (76, 281211), (84, 254429), (98, 218082), (114, 187474), (133, 160692), (147, 145388), (196, 109041), (228, 93737), (266, 80346), (294, 72694), (399, 53564), (532, 40173), (588, 36347), (798, 26782), (931, 22956), (1596, 13391), (1862, 11478), (1913, 11172), (2793, 7652), (3724, 5739), (3826, 5586)]