21100545

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:119

約数の個数: 96

約数和(自身を含む): 42681600

約数和(自身を除く): 21581055

約数列:

[1, 3, 5, 9, 15, 19, 23, 29, 37, 45, 57, 69, 87, 95, 111, 115, 145, 171, 185, 207, 261, 285, 333, 345, 435, 437, 551, 555, 667, 703, 851, 855, 1035, 1073, 1305, 1311, 1653, 1665, 2001, 2109, 2185, 2553, 2755, 3219, 3335, 3515, 3933, 4255, 4959, 5365, 6003, 6327, 6555, 7659, 8265, 9657, 10005, 10545, 12673, 12765, 16095, 16169, 19665, 20387, 24679, 24795, 30015, 31635, 38019, 38295, 48285, 48507, 61161, 63365, 74037, 80845, 101935, 114057, 123395, 145521, 183483, 190095, 222111, 242535, 305805, 370185, 468901, 570285, 727605, 917415, 1110555, 1406703, 2344505, 4220109, 7033515, 21100545]

約数ペア:

[(1, 21100545), (3, 7033515), (5, 4220109), (9, 2344505), (15, 1406703), (19, 1110555), (23, 917415), (29, 727605), (37, 570285), (45, 468901), (57, 370185), (69, 305805), (87, 242535), (95, 222111), (111, 190095), (115, 183483), (145, 145521), (171, 123395), (185, 114057), (207, 101935), (261, 80845), (285, 74037), (333, 63365), (345, 61161), (435, 48507), (437, 48285), (551, 38295), (555, 38019), (667, 31635), (703, 30015), (851, 24795), (855, 24679), (1035, 20387), (1073, 19665), (1305, 16169), (1311, 16095), (1653, 12765), (1665, 12673), (2001, 10545), (2109, 10005), (2185, 9657), (2553, 8265), (2755, 7659), (3219, 6555), (3335, 6327), (3515, 6003), (3933, 5365), (4255, 4959)]