19954452

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:221

約数の個数: 96

約数和(自身を含む): 56197120

約数和(自身を除く): 36242668

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 31, 42, 62, 79, 84, 93, 97, 124, 158, 186, 194, 217, 237, 291, 316, 372, 388, 434, 474, 553, 582, 651, 679, 868, 948, 1106, 1164, 1302, 1358, 1659, 2037, 2212, 2449, 2604, 2716, 3007, 3318, 4074, 4898, 6014, 6636, 7347, 7663, 8148, 9021, 9796, 12028, 14694, 15326, 17143, 18042, 21049, 22989, 29388, 30652, 34286, 36084, 42098, 45978, 51429, 53641, 63147, 68572, 84196, 91956, 102858, 107282, 126294, 160923, 205716, 214564, 237553, 252588, 321846, 475106, 643692, 712659, 950212, 1425318, 1662871, 2850636, 3325742, 4988613, 6651484, 9977226, 19954452]

約数ペア:

[(1, 19954452), (2, 9977226), (3, 6651484), (4, 4988613), (6, 3325742), (7, 2850636), (12, 1662871), (14, 1425318), (21, 950212), (28, 712659), (31, 643692), (42, 475106), (62, 321846), (79, 252588), (84, 237553), (93, 214564), (97, 205716), (124, 160923), (158, 126294), (186, 107282), (194, 102858), (217, 91956), (237, 84196), (291, 68572), (316, 63147), (372, 53641), (388, 51429), (434, 45978), (474, 42098), (553, 36084), (582, 34286), (651, 30652), (679, 29388), (868, 22989), (948, 21049), (1106, 18042), (1164, 17143), (1302, 15326), (1358, 14694), (1659, 12028), (2037, 9796), (2212, 9021), (2449, 8148), (2604, 7663), (2716, 7347), (3007, 6636), (3318, 6014), (4074, 4898)]