21078810

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{599}}^1$

素因数の和:652

約数の個数: 96

約数和(自身を含む): 60652800

約数和(自身を除く): 39573990

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 23, 30, 34, 45, 46, 51, 69, 85, 90, 102, 115, 138, 153, 170, 207, 230, 255, 306, 345, 391, 414, 510, 599, 690, 765, 782, 1035, 1173, 1198, 1530, 1797, 1955, 2070, 2346, 2995, 3519, 3594, 3910, 5391, 5865, 5990, 7038, 8985, 10183, 10782, 11730, 13777, 17595, 17970, 20366, 26955, 27554, 30549, 35190, 41331, 50915, 53910, 61098, 68885, 82662, 91647, 101830, 123993, 137770, 152745, 183294, 206655, 234209, 247986, 305490, 413310, 458235, 468418, 619965, 702627, 916470, 1171045, 1239930, 1405254, 2107881, 2342090, 3513135, 4215762, 7026270, 10539405, 21078810]

約数ペア:

[(1, 21078810), (2, 10539405), (3, 7026270), (5, 4215762), (6, 3513135), (9, 2342090), (10, 2107881), (15, 1405254), (17, 1239930), (18, 1171045), (23, 916470), (30, 702627), (34, 619965), (45, 468418), (46, 458235), (51, 413310), (69, 305490), (85, 247986), (90, 234209), (102, 206655), (115, 183294), (138, 152745), (153, 137770), (170, 123993), (207, 101830), (230, 91647), (255, 82662), (306, 68885), (345, 61098), (391, 53910), (414, 50915), (510, 41331), (599, 35190), (690, 30549), (765, 27554), (782, 26955), (1035, 20366), (1173, 17970), (1198, 17595), (1530, 13777), (1797, 11730), (1955, 10782), (2070, 10183), (2346, 8985), (2995, 7038), (3519, 5990), (3594, 5865), (3910, 5391)]