21962470

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:225

約数の個数: 64

約数和(自身を含む): 45069696

約数和(自身を除く): 23107226

約数列:

[1, 2, 5, 10, 17, 23, 34, 41, 46, 82, 85, 115, 137, 170, 205, 230, 274, 391, 410, 685, 697, 782, 943, 1370, 1394, 1886, 1955, 2329, 3151, 3485, 3910, 4658, 4715, 5617, 6302, 6970, 9430, 11234, 11645, 15755, 16031, 23290, 28085, 31510, 32062, 53567, 56170, 80155, 95489, 107134, 129191, 160310, 190978, 258382, 267835, 477445, 535670, 645955, 954890, 1291910, 2196247, 4392494, 10981235, 21962470]

約数ペア:

[(1, 21962470), (2, 10981235), (5, 4392494), (10, 2196247), (17, 1291910), (23, 954890), (34, 645955), (41, 535670), (46, 477445), (82, 267835), (85, 258382), (115, 190978), (137, 160310), (170, 129191), (205, 107134), (230, 95489), (274, 80155), (391, 56170), (410, 53567), (685, 32062), (697, 31510), (782, 28085), (943, 23290), (1370, 16031), (1394, 15755), (1886, 11645), (1955, 11234), (2329, 9430), (3151, 6970), (3485, 6302), (3910, 5617), (4658, 4715)]