21000724776

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{216217}}^1$

素因数の和:216319

約数の個数: 96

約数和(自身を含む): 60714014400

約数和(自身を除く): 39713289624

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 57, 71, 72, 76, 114, 142, 152, 171, 213, 228, 284, 342, 426, 456, 568, 639, 684, 852, 1278, 1349, 1368, 1704, 2556, 2698, 4047, 5112, 5396, 8094, 10792, 12141, 16188, 24282, 32376, 48564, 97128, 216217, 432434, 648651, 864868, 1297302, 1729736, 1945953, 2594604, 3891906, 4108123, 5189208, 7783812, 8216246, 12324369, 15351407, 15567624, 16432492, 24648738, 30702814, 32864984, 36973107, 46054221, 49297476, 61405628, 73946214, 92108442, 98594952, 122811256, 138162663, 147892428, 184216884, 276325326, 291676733, 295784856, 368433768, 552650652, 583353466, 875030199, 1105301304, 1166706932, 1750060398, 2333413864, 2625090597, 3500120796, 5250181194, 7000241592, 10500362388, 21000724776]

約数ペア:

[(1, 21000724776), (2, 10500362388), (3, 7000241592), (4, 5250181194), (6, 3500120796), (8, 2625090597), (9, 2333413864), (12, 1750060398), (18, 1166706932), (19, 1105301304), (24, 875030199), (36, 583353466), (38, 552650652), (57, 368433768), (71, 295784856), (72, 291676733), (76, 276325326), (114, 184216884), (142, 147892428), (152, 138162663), (171, 122811256), (213, 98594952), (228, 92108442), (284, 73946214), (342, 61405628), (426, 49297476), (456, 46054221), (568, 36973107), (639, 32864984), (684, 30702814), (852, 24648738), (1278, 16432492), (1349, 15567624), (1368, 15351407), (1704, 12324369), (2556, 8216246), (2698, 7783812), (4047, 5189208), (5112, 4108123), (5396, 3891906), (8094, 2594604), (10792, 1945953), (12141, 1729736), (16188, 1297302), (24282, 864868), (32376, 648651), (48564, 432434), (97128, 216217)]