20542116

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:305

約数の個数: 96

約数和(自身を含む): 58885120

約数和(自身を除く): 38343004

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 57, 61, 76, 84, 114, 122, 133, 183, 211, 228, 244, 266, 366, 399, 422, 427, 532, 633, 732, 798, 844, 854, 1159, 1266, 1281, 1477, 1596, 1708, 2318, 2532, 2562, 2954, 3477, 4009, 4431, 4636, 5124, 5908, 6954, 8018, 8113, 8862, 12027, 12871, 13908, 16036, 16226, 17724, 24054, 24339, 25742, 28063, 32452, 38613, 48108, 48678, 51484, 56126, 77226, 84189, 90097, 97356, 112252, 154452, 168378, 180194, 244549, 270291, 336756, 360388, 489098, 540582, 733647, 978196, 1081164, 1467294, 1711843, 2934588, 3423686, 5135529, 6847372, 10271058, 20542116]

約数ペア:

[(1, 20542116), (2, 10271058), (3, 6847372), (4, 5135529), (6, 3423686), (7, 2934588), (12, 1711843), (14, 1467294), (19, 1081164), (21, 978196), (28, 733647), (38, 540582), (42, 489098), (57, 360388), (61, 336756), (76, 270291), (84, 244549), (114, 180194), (122, 168378), (133, 154452), (183, 112252), (211, 97356), (228, 90097), (244, 84189), (266, 77226), (366, 56126), (399, 51484), (422, 48678), (427, 48108), (532, 38613), (633, 32452), (732, 28063), (798, 25742), (844, 24339), (854, 24054), (1159, 17724), (1266, 16226), (1281, 16036), (1477, 13908), (1596, 12871), (1708, 12027), (2318, 8862), (2532, 8113), (2562, 8018), (2954, 6954), (3477, 5908), (4009, 5124), (4431, 4636)]