19881288

素因数分解:

$2^3\times 3^6\times 7^1\times {\mathrm{487}}^1$

素因数の和:518

約数の個数: 112

約数和(自身を含む): 64006080

約数和(自身を除く): 44124792

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 81, 84, 108, 126, 162, 168, 189, 216, 243, 252, 324, 378, 486, 487, 504, 567, 648, 729, 756, 972, 974, 1134, 1458, 1461, 1512, 1701, 1944, 1948, 2268, 2916, 2922, 3402, 3409, 3896, 4383, 4536, 5103, 5832, 5844, 6804, 6818, 8766, 10206, 10227, 11688, 13149, 13608, 13636, 17532, 20412, 20454, 26298, 27272, 30681, 35064, 39447, 40824, 40908, 52596, 61362, 78894, 81816, 92043, 105192, 118341, 122724, 157788, 184086, 236682, 245448, 276129, 315576, 355023, 368172, 473364, 552258, 710046, 736344, 828387, 946728, 1104516, 1420092, 1656774, 2209032, 2485161, 2840184, 3313548, 4970322, 6627096, 9940644, 19881288]

約数ペア:

[(1, 19881288), (2, 9940644), (3, 6627096), (4, 4970322), (6, 3313548), (7, 2840184), (8, 2485161), (9, 2209032), (12, 1656774), (14, 1420092), (18, 1104516), (21, 946728), (24, 828387), (27, 736344), (28, 710046), (36, 552258), (42, 473364), (54, 368172), (56, 355023), (63, 315576), (72, 276129), (81, 245448), (84, 236682), (108, 184086), (126, 157788), (162, 122724), (168, 118341), (189, 105192), (216, 92043), (243, 81816), (252, 78894), (324, 61362), (378, 52596), (486, 40908), (487, 40824), (504, 39447), (567, 35064), (648, 30681), (729, 27272), (756, 26298), (972, 20454), (974, 20412), (1134, 17532), (1458, 13636), (1461, 13608), (1512, 13149), (1701, 11688), (1944, 10227), (1948, 10206), (2268, 8766), (2916, 6818), (2922, 6804), (3402, 5844), (3409, 5832), (3896, 5103), (4383, 4536)]