20986602

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1$

素因数の和:85

約数の個数: 144

約数和(自身を含む): 58796640

約数和(自身を除く): 37810038

約数列:

[1, 2, 3, 6, 7, 13, 14, 17, 19, 21, 26, 34, 38, 39, 42, 49, 51, 57, 78, 91, 98, 102, 114, 119, 133, 147, 182, 221, 238, 247, 266, 273, 289, 294, 323, 357, 399, 442, 494, 546, 578, 637, 646, 663, 714, 741, 798, 833, 867, 931, 969, 1274, 1326, 1482, 1547, 1666, 1729, 1734, 1862, 1911, 1938, 2023, 2261, 2499, 2793, 3094, 3458, 3757, 3822, 4046, 4199, 4522, 4641, 4998, 5187, 5491, 5586, 6069, 6783, 7514, 8398, 9282, 10374, 10829, 10982, 11271, 12103, 12138, 12597, 13566, 14161, 15827, 16473, 21658, 22542, 24206, 25194, 26299, 28322, 29393, 31654, 32487, 32946, 36309, 38437, 42483, 47481, 52598, 58786, 64974, 71383, 72618, 76874, 78897, 84966, 88179, 94962, 115311, 142766, 157794, 176358, 184093, 205751, 214149, 230622, 269059, 368186, 411502, 428298, 499681, 538118, 552279, 617253, 807177, 999362, 1104558, 1234506, 1499043, 1614354, 2998086, 3497767, 6995534, 10493301, 20986602]

約数ペア:

[(1, 20986602), (2, 10493301), (3, 6995534), (6, 3497767), (7, 2998086), (13, 1614354), (14, 1499043), (17, 1234506), (19, 1104558), (21, 999362), (26, 807177), (34, 617253), (38, 552279), (39, 538118), (42, 499681), (49, 428298), (51, 411502), (57, 368186), (78, 269059), (91, 230622), (98, 214149), (102, 205751), (114, 184093), (119, 176358), (133, 157794), (147, 142766), (182, 115311), (221, 94962), (238, 88179), (247, 84966), (266, 78897), (273, 76874), (289, 72618), (294, 71383), (323, 64974), (357, 58786), (399, 52598), (442, 47481), (494, 42483), (546, 38437), (578, 36309), (637, 32946), (646, 32487), (663, 31654), (714, 29393), (741, 28322), (798, 26299), (833, 25194), (867, 24206), (931, 22542), (969, 21658), (1274, 16473), (1326, 15827), (1482, 14161), (1547, 13566), (1666, 12597), (1729, 12138), (1734, 12103), (1862, 11271), (1911, 10982), (1938, 10829), (2023, 10374), (2261, 9282), (2499, 8398), (2793, 7514), (3094, 6783), (3458, 6069), (3757, 5586), (3822, 5491), (4046, 5187), (4199, 4998), (4522, 4641)]