21259860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1097}}^1$

素因数の和:1145

約数の個数: 96

約数和(自身を含む): 66407040

約数和(自身を除く): 45147180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 19, 20, 30, 34, 38, 51, 57, 60, 68, 76, 85, 95, 102, 114, 170, 190, 204, 228, 255, 285, 323, 340, 380, 510, 570, 646, 969, 1020, 1097, 1140, 1292, 1615, 1938, 2194, 3230, 3291, 3876, 4388, 4845, 5485, 6460, 6582, 9690, 10970, 13164, 16455, 18649, 19380, 20843, 21940, 32910, 37298, 41686, 55947, 62529, 65820, 74596, 83372, 93245, 104215, 111894, 125058, 186490, 208430, 223788, 250116, 279735, 312645, 354331, 372980, 416860, 559470, 625290, 708662, 1062993, 1118940, 1250580, 1417324, 1771655, 2125986, 3543310, 4251972, 5314965, 7086620, 10629930, 21259860]

約数ペア:

[(1, 21259860), (2, 10629930), (3, 7086620), (4, 5314965), (5, 4251972), (6, 3543310), (10, 2125986), (12, 1771655), (15, 1417324), (17, 1250580), (19, 1118940), (20, 1062993), (30, 708662), (34, 625290), (38, 559470), (51, 416860), (57, 372980), (60, 354331), (68, 312645), (76, 279735), (85, 250116), (95, 223788), (102, 208430), (114, 186490), (170, 125058), (190, 111894), (204, 104215), (228, 93245), (255, 83372), (285, 74596), (323, 65820), (340, 62529), (380, 55947), (510, 41686), (570, 37298), (646, 32910), (969, 21940), (1020, 20843), (1097, 19380), (1140, 18649), (1292, 16455), (1615, 13164), (1938, 10970), (2194, 9690), (3230, 6582), (3291, 6460), (3876, 5485), (4388, 4845)]