21825960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{823}}^1$

素因数の和:867

約数の個数: 128

約数和(自身を含む): 74753280

約数和(自身を除く): 52927320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 17, 20, 24, 26, 30, 34, 39, 40, 51, 52, 60, 65, 68, 78, 85, 102, 104, 120, 130, 136, 156, 170, 195, 204, 221, 255, 260, 312, 340, 390, 408, 442, 510, 520, 663, 680, 780, 823, 884, 1020, 1105, 1326, 1560, 1646, 1768, 2040, 2210, 2469, 2652, 3292, 3315, 4115, 4420, 4938, 5304, 6584, 6630, 8230, 8840, 9876, 10699, 12345, 13260, 13991, 16460, 19752, 21398, 24690, 26520, 27982, 32097, 32920, 41973, 42796, 49380, 53495, 55964, 64194, 69955, 83946, 85592, 98760, 106990, 111928, 128388, 139910, 160485, 167892, 181883, 209865, 213980, 256776, 279820, 320970, 335784, 363766, 419730, 427960, 545649, 559640, 641940, 727532, 839460, 909415, 1091298, 1283880, 1455064, 1678920, 1818830, 2182596, 2728245, 3637660, 4365192, 5456490, 7275320, 10912980, 21825960]

約数ペア:

[(1, 21825960), (2, 10912980), (3, 7275320), (4, 5456490), (5, 4365192), (6, 3637660), (8, 2728245), (10, 2182596), (12, 1818830), (13, 1678920), (15, 1455064), (17, 1283880), (20, 1091298), (24, 909415), (26, 839460), (30, 727532), (34, 641940), (39, 559640), (40, 545649), (51, 427960), (52, 419730), (60, 363766), (65, 335784), (68, 320970), (78, 279820), (85, 256776), (102, 213980), (104, 209865), (120, 181883), (130, 167892), (136, 160485), (156, 139910), (170, 128388), (195, 111928), (204, 106990), (221, 98760), (255, 85592), (260, 83946), (312, 69955), (340, 64194), (390, 55964), (408, 53495), (442, 49380), (510, 42796), (520, 41973), (663, 32920), (680, 32097), (780, 27982), (823, 26520), (884, 24690), (1020, 21398), (1105, 19752), (1326, 16460), (1560, 13991), (1646, 13260), (1768, 12345), (2040, 10699), (2210, 9876), (2469, 8840), (2652, 8230), (3292, 6630), (3315, 6584), (4115, 5304), (4420, 4938)]