19745214909

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1\times {\mathrm{353}}^1\times {\mathrm{373}}^1$

素因数の和:966

約数の個数: 64

約数和(自身を含む): 31232745984

約数和(自身を除く): 11487531075

約数列:

[1, 3, 7, 21, 37, 111, 193, 259, 353, 373, 579, 777, 1059, 1119, 1351, 2471, 2611, 4053, 7141, 7413, 7833, 13061, 13801, 21423, 39183, 41403, 49987, 68129, 71989, 91427, 96607, 131669, 149961, 204387, 215967, 274281, 289821, 395007, 476903, 503923, 921683, 1430709, 1511769, 2520773, 2663593, 2765049, 4871753, 7562319, 7990779, 14615259, 17645411, 18645151, 25412117, 34102271, 52936233, 55935453, 76236351, 102306813, 177884819, 533654457, 940248329, 2820744987, 6581738303, 19745214909]

約数ペア:

[(1, 19745214909), (3, 6581738303), (7, 2820744987), (21, 940248329), (37, 533654457), (111, 177884819), (193, 102306813), (259, 76236351), (353, 55935453), (373, 52936233), (579, 34102271), (777, 25412117), (1059, 18645151), (1119, 17645411), (1351, 14615259), (2471, 7990779), (2611, 7562319), (4053, 4871753), (7141, 2765049), (7413, 2663593), (7833, 2520773), (13061, 1511769), (13801, 1430709), (21423, 921683), (39183, 503923), (41403, 476903), (49987, 395007), (68129, 289821), (71989, 274281), (91427, 215967), (96607, 204387), (131669, 149961)]