21843640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{353}}^1$

素因数の和:401

約数の個数: 128

約数和(自身を含む): 64229760

約数和(自身を除く): 42386120

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 17, 20, 26, 28, 34, 35, 40, 52, 56, 65, 68, 70, 85, 91, 104, 119, 130, 136, 140, 170, 182, 221, 238, 260, 280, 340, 353, 364, 442, 455, 476, 520, 595, 680, 706, 728, 884, 910, 952, 1105, 1190, 1412, 1547, 1765, 1768, 1820, 2210, 2380, 2471, 2824, 3094, 3530, 3640, 4420, 4589, 4760, 4942, 6001, 6188, 7060, 7735, 8840, 9178, 9884, 12002, 12355, 12376, 14120, 15470, 18356, 19768, 22945, 24004, 24710, 30005, 30940, 32123, 36712, 42007, 45890, 48008, 49420, 60010, 61880, 64246, 78013, 84014, 91780, 98840, 120020, 128492, 156026, 160615, 168028, 183560, 210035, 240040, 256984, 312052, 321230, 336056, 390065, 420070, 546091, 624104, 642460, 780130, 840140, 1092182, 1284920, 1560260, 1680280, 2184364, 2730455, 3120520, 4368728, 5460910, 10921820, 21843640]

約数ペア:

[(1, 21843640), (2, 10921820), (4, 5460910), (5, 4368728), (7, 3120520), (8, 2730455), (10, 2184364), (13, 1680280), (14, 1560260), (17, 1284920), (20, 1092182), (26, 840140), (28, 780130), (34, 642460), (35, 624104), (40, 546091), (52, 420070), (56, 390065), (65, 336056), (68, 321230), (70, 312052), (85, 256984), (91, 240040), (104, 210035), (119, 183560), (130, 168028), (136, 160615), (140, 156026), (170, 128492), (182, 120020), (221, 98840), (238, 91780), (260, 84014), (280, 78013), (340, 64246), (353, 61880), (364, 60010), (442, 49420), (455, 48008), (476, 45890), (520, 42007), (595, 36712), (680, 32123), (706, 30940), (728, 30005), (884, 24710), (910, 24004), (952, 22945), (1105, 19768), (1190, 18356), (1412, 15470), (1547, 14120), (1765, 12376), (1768, 12355), (1820, 12002), (2210, 9884), (2380, 9178), (2471, 8840), (2824, 7735), (3094, 7060), (3530, 6188), (3640, 6001), (4420, 4942), (4589, 4760)]