21757164

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1$

素因数の和:471

約数の個数: 96

約数和(自身を含む): 61716480

約数和(自身を除く): 39959316

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 31, 33, 39, 44, 52, 62, 66, 78, 93, 124, 132, 143, 156, 186, 286, 341, 372, 403, 409, 429, 572, 682, 806, 818, 858, 1023, 1209, 1227, 1364, 1612, 1636, 1716, 2046, 2418, 2454, 4092, 4433, 4499, 4836, 4908, 5317, 8866, 8998, 10634, 12679, 13299, 13497, 15951, 17732, 17996, 21268, 25358, 26598, 26994, 31902, 38037, 50716, 53196, 53988, 58487, 63804, 76074, 116974, 139469, 152148, 164827, 175461, 233948, 278938, 329654, 350922, 418407, 494481, 557876, 659308, 701844, 836814, 988962, 1673628, 1813097, 1977924, 3626194, 5439291, 7252388, 10878582, 21757164]

約数ペア:

[(1, 21757164), (2, 10878582), (3, 7252388), (4, 5439291), (6, 3626194), (11, 1977924), (12, 1813097), (13, 1673628), (22, 988962), (26, 836814), (31, 701844), (33, 659308), (39, 557876), (44, 494481), (52, 418407), (62, 350922), (66, 329654), (78, 278938), (93, 233948), (124, 175461), (132, 164827), (143, 152148), (156, 139469), (186, 116974), (286, 76074), (341, 63804), (372, 58487), (403, 53988), (409, 53196), (429, 50716), (572, 38037), (682, 31902), (806, 26994), (818, 26598), (858, 25358), (1023, 21268), (1209, 17996), (1227, 17732), (1364, 15951), (1612, 13497), (1636, 13299), (1716, 12679), (2046, 10634), (2418, 8998), (2454, 8866), (4092, 5317), (4433, 4908), (4499, 4836)]